32.48833 32.58833 -117.13000 -117.03000 UC/JEPS: Consortium Search Results
Search Results — 1409 specimen records retrieved (1409 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  SD113892  Abronia maritima Darley F. Howe 1935-6-2 256 San Diego Beach, Tia Juana River. Comment
  SD13259  Abronia maritima Frank F. Gander 1936-1-28 506 San Diego on beach near monument 258 Comment
  SD193891  Abronia maritima Phillip Roullard 2006-2-25 93 San Diego Imperial Beach, Border Field State Park, on beach, I(c) mi W of Monument Road, Ao N of U.S. and Mexico border 3 Comment
  SD79409 Image available Abronia maritima Reid Moran 1970-2-7 16726 San Diego Occasional on upper beach at Mexican Boundary Monument 258. 99 Comment
  SDSU8438  Abronia maritima T. A Rowden 1987-4-17 San Diego Dunes 200m North of Carnation Ave. Imperial Beach, SD county. Comment
  UCR26842  Abronia maritima A. C. Sanders 1982-6-6 2703 San Diego South Coast, Imperial Beach, mouth of the Tijuana River 2 Comment
  CAS-BOT-BC229417  Abronia umbellata R. D. Alderson 1895-6-12 s.n. San Diego Boundary Monument Comment
  CAS-BOT-BC229421  Abronia umbellata Carl B. Wolf 1941-6-27 10913 San Diego Extreme SW. corner of the U.S.A. about 500 ft. N. of initial Boundary Monument 3 Comment
  NY679474  Abronia umbellata C. B. Wolf 1941-6-27 4207 San Diego Extreme SW corner of USA. About 500ft. N of initial boundary monument. 3 Comment
  SD15069  Abronia umbellata Frank F. Gander 1936-4-28 1659 San Diego U.S. Boundary Monument 258 Comment
  SD113886  Abronia umbellata subsp. variabilis Darley F. Howe 1935-6-2 257 San Diego Beach, mouth of Tia Juana Valley. Comment
  OBI76904  Acacia cyclops Jon P. Rebman, W. Schmidtmann and J. Rocks 2012-2-17 22544 San Diego Voucher for San Diego Plant Atlas. Border Field State Park: W of San Ysidro border crossing; S of Monument Rd; N of the USA/Mexico border fence; lower N facing slope of Bunker Hill near dirt rd and cyn bottom 20 Comment
  SD219482  Acacia cyclops Jon P. Rebman, W. Schmidtmann and J. Rocks 2012-2-17 22544 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; north of the USA/Mexico border fence; lower north-facing slope of Bunker Hill near dirt road and canyon bottom 20 Comment
  UCR239722  Acacia cyclops Jon P. Rebman, Warren Schmidtmann, Jim Rocks 2012-2-17 22544 San Diego Border Field State Park, west of San Ysidro border crossing, south of Monument Road, north of the US/Mexico border fence, lower north-facing slope of Bunker Hill near dirt road and canyon bottom. Square W10 20 Comment
  UCR47362  Acacia farnesiana C. B. Wolf 1931-5-26 2094 San Diego 1 mi SW of Otay, on the road to Tijuana 61 Comment
  RSA10011  Acacia farnesiana subsp. minuta F. F. Gander 1934-1-2 s.n. San Diego 2 miles S of Otay PO. Comment
  RSA1744  Acacia farnesiana subsp. minuta C. B. Wolf 1931-5-26 2094 San Diego 1 mile SW of Otay, on the road to Tijuana. 61 Comment
  RSA7409  Acacia farnesiana subsp. minuta C. B. Wolf 1933-8-31 1917 San Diego 1 mile SW of Otay on the road to Tia Juana. Comment
  SD183362  Acacia pendula Phillip Roullard 2007-3-30 139 San Diego Otay Mesa, Borderfield State Park, Goat Canyon, about 450 yards S of Monument Road and 1 mi SW of intersection with Saturn Blvd, near sedimentation basin 4 Comment
  GH347515  Acalypha californica E. D. Palmer 1875-1-1 447 Unknown San Diego, Near Boundary Mont. [monument] Comment
  SD113868  Acalypha californica Darley F. Howe 1938-8-14 721 San Diego Mesa south of lower Tia Juana Valley. Comment
  SD128779  Acalypha californica Geoffrey A. Levin, Melanie Howe 1990-4-9 2058 San Diego Small canyon off Goat Canyon, west end of Spooner's Mesa. 74 Comment
  SD247825  Acalypha californica Phillip Roullard 2011-5-11 334 San Diego Border Field State Park, E side of Goat Canyon, 1 mile WSW of intersection Hollister Road and Monument Road; 220 yards N of the border 24 Comment
  SD250037  Acalypha californica Phillip Roullard 2010-4-17 268 San Diego Border Field State Park, E side of Goat Canyon, 1 mile WSW of intersection Hollister Road and Monument Road; 220 yards N of the border 56 Comment
  SD79863  Acalypha californica Helen V. Witham 1971-2-21 1202 San Diego Spooner's Mesa near International Border. 99 Comment
  SD83552  Acalypha californica R. Mitchel Beauchamp 1971-2-21 1641 San Diego Spooner's Mesa near International Border. 124 Comment
  SD83628  Acalypha californica R. Mitchel Beauchamp 1971-2-21 1643 San Diego Spooner's Mesa near International Border. 124 Comment
  SEINET3089652 Image available Acalypha californica R. Mitchel Beauchamp 1971-2-21 1641 San Diego Spooner's Mesa near International Border. 125 Comment
  UCD142896  Acalypha californica Geoffrey A. Levin; Melanie Howe 1990-4-9 2058 San Diego Small canyon off Goat Canyon, west end of Spooner's Mesa. (original coordinates on label were: 32 degrees, 32 minutes N, 117 degrees, 6 minutes W; these were changed to agree with georeferencing done at the San Diego Natural History Museum, as requested by Geoffrey Levin in 2015). 75 Comment
Read comments
Mar 7 2015
  SD15060  Achillea millefolium Frank F. Gander 1936-4-28 1648 San Diego Monument School. Comment
  SD154631  Achillea millefolium Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6713 San Diego Moody Canyon area, just east of San Ysidro Jr. High School 89 Comment
  SD242393  Achillea millefolium Phillip Roullard, Jon Rebman 2009-4-10 256 San Diego Border Field State Park; Imperial Beach; W side of Bunker Hill near border; 1.34 miles SW of intersection Hollister Road and Monument Road 82 Comment
  UCR147154  Achillea millefolium Jon P. Rebman, K. Rich, O. Solis, John Klavzar, Robert K. Lauri 2000-5-26 6713 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  GH361518  Achnatherum speciosum L. Abrams 1903-5-14 3470 Unknown Tia Juana Comment
  POM156427  Achnatherum speciosum Le Roy Abrams 1903-5-14 3470 San Diego Hills at Tia Juana, U.S. side of line. Comment
  SD247884  Acmispon americanus var. americanus Phillip Roullard 2011-8-7 339 San Diego Border Field State Park; Monument Mesa, W end; 200 yards E of Pacific Ocean and 200 yards N of the border; parking lot adjacent to Monument Mesa on the north side 15 Comment
  SEINET4559708  Acmispon americanus var. americanus P. Roullard 2011-1 339 San Diego Border Field State Park; Monument Mesa, W end; 200 yards E. of Pacific Ocean and 200 yards N of the border; parking lot adjacent to Monument Mesa on the north side 16 Comment
  SD13218  Acmispon glaber Frank F. Gander 1936-1-28 514 San Diego On beach 1 mile north of Monument 258 Comment
  SD45798  Acmispon glaber E. B. Higgins 1955-3-10 San Diego International Monument 258 Comment
  SD79862  Acmispon glaber Helen V. Witham 1971-2-21 1204 San Diego Spooner Mesa, south of Tijuana River 99 Comment
  SD170774  Acmispon glaber var. glaber Phillip Roullard 2004-12-17 10 San Diego Border Field Bluffs, 0.7 mi E of intersection of Monument Rd and Hollister St., 0.5 mi N of US/Mexico border fence. Plant is along Vista del estero road at top of grade before switchback. 29 Comment
  SD170775  Acmispon glaber var. glaber Phillip Roullard 2005-5-13 51 San Diego South of the city of Imperial Beach, E side of Smuggler Gulch, 0.2 mi N of US/Mexico border fence, 0.2 mi SW of intersection of Hollister Rd and Monument Rd. 36 Comment
  SD219486  Acmispon micranthus Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22511 B San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; east-facing lower slope of Bunker Hill 85 Comment
  RSA799703  Acmispon prostratus LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5902 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD113764  Acmispon prostratus Darley F. Howe 1936-5-24 342 San Diego At mouth of Tijuana Comment
  SD15079  Acmispon prostratus Frank F. Gander 1936-4-28 1669 San Diego U. S. Boundary Monument 258. Comment
  SD113637  Acmispon strigosus Darley F. Howe 1935-3-17 152 San Diego Otay Comment
  SD170538  Adenostoma fasciculatum Phillip Roullard 2005-5-13 47 San Diego South of the city of Imperial Beach, E of Smuggler Gulch, on road just N of US/Mexico border fence, 0.4 mi SE of intersection of Hollister Rd and Monument Rd. 92 Comment
  SD191386  Adenostoma fasciculatum Phillip Roullard 2006-6-6 134 San Diego Otay Mesa, Border Field State Park, Border Field Bluffs, Ao mi W of Hollister Street, 200 yds N of U.S. Mexico border on top of mesa 14 Comment
  SD84676  Adenostoma fasciculatum Reid Moran 1973-4-2 20352 San Diego Near Boundary Monument 256, 3 miles west of San Ysidro. 124 Comment
  CAS-BOT-BC364202  Adolphia californica LeRoy Abrams 1903-5-14 3481 San Diego Hills near Tia Juana Comment
  GH367867  Adolphia californica L. Abrams 1903-5-14 3481 Unknown Hills near Tia Juana Comment
  POM156397  Adolphia californica L. R. Abrams 1903-5-14 3481 San Diego Hills at Tia Juana, U.S. side of line. Comment
  SD12938  Adolphia californica Frank F. Gander 1935-12-5 313 2 San Diego San Ysidro Comment
  SD20229  Adolphia californica Frank F. Gander 1938-1-7 4902 San Diego 1 mile south of Otay Comment
  SD83509  Adolphia californica R. Mitchel Beauchamp, R. C. Pierce 1970-9-18 1335 San Diego Canyon on south side of Otay River Valley. Comment
  UC1071034  Adolphia californica H. A. Jensen 1931-1-28 111 San Diego near Tia Juana; San Diego Quadrangle 91 Comment
  CAS-BOT-BC101864  Agave shawii C. B. Wolf 1933-8-31 5412 San Diego 8 ft. N. of Mexican boundary and 2nd small hill from Ocean (boundary monument on 1st) 12 Comment
  CAS-BOT-BC101865  Agave shawii Alice Eastwood 1913-4-24 2940 San Diego Boundary Monument Comment
  GH357714  Agave shawii C. B. Wolf 1933-8-31 5412 Unknown 8 ft. N. of Mexican boundary and 2nd small hill from ocean (boundary monument on 1st.) Comment
Read comments
Jul 7 2018
  SD13376  Agave shawii Frank F. Gander 1936-1-28 494 San Diego Near Boundary Monument 258, on shore of Pacific (IPB 4/07) Comment
  UC404732  Agave shawii H. M. Hall 1903-4-30 3957 San Diego sw corner San Diego County Comment
  RSA257000  Agave shawii var. shawii Gary D. Wallace, Larry E. DeBuhr 1972-12-2 156 San Diego 1/2 mile N of border with Mexico in Border Field State Park, in extreme SW part of the county. Comment
  RSA7643  Agave shawii var. shawii Carl B. Wolf 1933-8-13 5412 -A San Diego 8 feet north of Mexican Boundary and on 2nd small hill from ocean. (Boundary Monument on 1st [small hill].) Comment
  RSA7644  Agave shawii var. shawii Carl B. Wolf 1933-8-13 5412 -B San Diego 8 feet north of Mexican Boundary and on 2nd small hill from ocean. (Boundary Monument on 1st [small hill].) Comment
  RSA799786  Agave shawii var. shawii LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5933 San Diego Lichty Mesa, Borderfield State Park. Near 20 Comment
  SD180560 Image available Agave shawii var. shawii Phillip Roullard 2005-10-21 90 San Diego Tijuana Slough National Wildlife Refuge. S of Caspian Way, from the visitor center parking lot go straight West to the edge of the demo garden; plant is located just north of the bike rack 3 Comment
  CAS-BOT-BC127062  Agrostis exarata S. G. Stokes 1895-6-1 s.n. San Diego Tia Juana. Comment
  SD79407 Image available Alcea rosea Reid Moran 1970-2-7 16719 San Diego Few at roadside, Monument Road at Dairymart Road, west of San Ysidro. Comment
  RSA799702  Allium praecox LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5900 San Diego Lichty Mesa, Borderfield State Park. Near 20 Comment
  SD198068  Allium praecox Kim Marsden, Cindy Burrascano 2003-3-15 173 San Diego San Diego, Borderfield State Park, Lichty Mesa, 0.33 mi E of beach, 30 yds N of US/Mexico border 24 Comment
  SD219167  Allium praecox Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22476 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  SD237664  Allium praecox Phillip Roullard 2008-3-14 200 San Diego Border Field State Park, east facing slope of Bunker Hill, go south towards the border fence up a small ravine on the east facing hillside, about 1.3 mi east of Pacific Ocean and .15 miles northeast of Border Monument #257 22 Comment
  SD45800  Allium praecox Charles F. Harbison 1955-3-10 San Diego International Monument 258. Comment
  UCR16033  Allium praecox Robert M. Hasegawa 1976-4-17 s.n. San Diego Otay Mesa, 1.2 - 1.5 mi NE of Beyer Way along Otay Mesa Road 152 Comment
  SD112935  Amaranthus albus Darley F. Howe 1935-7-7 280 San Diego Lower Tiajuana Valley Comment
  SD246701  Amaranthus albus Phillip Roullard 2010-8-12 312 San Diego Border Field State Park; 1.65 mile WSW of intersection Hollister Road and Monument Road; 550 yards N of the border EPA restoration site between the sediment basins on the East and Monument Rd. 2 Comment
  SD83486  Amaranthus albus R. Mitchel Beauchamp, R. C. Pierce 1970-12-5 1406 San Diego Tijuana River Valley, River bottom 4 Comment
  SD246715  Amaranthus hybridus Phillip Roullard 2010-8-12 309 San Diego Border Field State Park; 1.65 mile WSW of intersection Hollister Road and Monument Road; 550 yards N of the border EPA restoration site between the sediment basins on the East and Monument Rd. 4 Comment
  SD112941  Amaranthus retroflexus Darley Howe 1935-7-7 281 San Diego Otay Comment
  CAS-BOT-BC13499  Amblyopappus pusillus Alice Eastwood 1913-4-24 2930 San Diego Tia Juana Comment
  CAS-BOT-BC13500  Amblyopappus pusillus Alice Eastwood 1913-4-24 2931 San Diego Tia Juana Comment
  CAS-BOT-BC13504  Amblyopappus pusillus Frank W. Peirson 1923-3-27 3405 San Diego Imperial Beach Comment
  SD112613  Amblyopappus pusillus Darley F. Howe 1937-5-16 498 San Diego Mouth Tia Juana Valley Comment
  SD15072  Amblyopappus pusillus Frank F. Gander 1936-4-28 1662 San Diego U. S. Boundary Monument 258. Comment
  SD242395  Amblyopappus pusillus Phillip Roullard 2011-5-7 332 San Diego Border Field State Park; Monument Mesa, W end; 200 yards E of Pacific Ocean and 200 yards N of the border 27 Comment
  UCR26848  Amblyopappus pusillus A. C. Sanders 1982-6-6 2709 San Diego South Coast, Imperial Beach. S end San Diego Bay near end of 13th St. Comment
  CDA18797  Ambrosia ambrosioides H. S. Nielsen 2000-3-14 San Diego Along coast. 0 Comment
  UCR115331  Ambrosia ambrosioides H. S. Nielsen 2000-3-14 s.n. San Diego Along coast Comment
  CAS-BOT-BC44879  Ambrosia chamissonis Edgar A. Mearns 1894-7-15 3921 San Diego Vicinity of Monument 258P. Comment
  SD136455  Ambrosia chamissonis Charles F. Harbison 1955-3-10 San Diego International Boundary Monument 258. Comment
  SD22016  Ambrosia chamissonis Frank F. Gander 1938-7-25 6155 San Diego Near Boundary Monument No. 258 Comment
  SD85531  Ambrosia chamissonis R. Mitchel Beauchamp 1971-5-1 2301 San Diego Tijuana Slough Comment
  SDSU6861  Ambrosia chamissonis unknown 1931-7-1 San Diego Tiajuana River Estuary Comment
  CAS-BOT-BC35135  Ambrosia chenopodiifolia Carl B. Wolf 1941-6-28 10916 San Diego SW end of Otay Mesa, 0.5 mi. E of San Diego-Tiajuana Road. 30 Comment
  CAS-BOT-BC35136  Ambrosia chenopodiifolia Carl B. Wolf 1941-6-28 10916 San Diego SW end of Otay Mesa, 0.5 mi. E of San Diego-Tiajuana Road. 30 Comment
  CDA9951  Ambrosia chenopodiifolia J. L. Johnson 1977-2-24 San Diego S. D. Arizona R. R., 700 East San Ysidro Boulevard, San Ysidro. 0 Comment
  CLARK-A1528-1534  Ambrosia chenopodiifolia John C. Roos 1937-6-13 1441 San Diego San Ysidro Comment
  POM156451  Ambrosia chenopodiifolia L. R. Abrams 1903-5-14 3476 San Diego Tia Juana Comment
  POM266301  Ambrosia chenopodiifolia J. C. Roos 1937-6-13 1441 San Diego hillside near San Ysidro Comment
  POM4812  Ambrosia chenopodiifolia George B. Everett 1902-4-20 1637 San Diego Tia Juana Comment
  RSA689502  Ambrosia chenopodiifolia Jon P. Rebman, K. Rich, B. Laurie, Oscar Solis, John K. 2000-5-26 6723 San Diego Moody Canyon area, just E of San Ysidro Jr. High School. 90 Comment
  SD143590  Ambrosia chenopodiifolia R. D. Goeden, D. W. Ricker 1971-3-16 San Diego Otay Mesa, E edge of San Ysidro, north side of Otay Mesa Road, 0.6 miles east of North Vista Ave. (mak 3/06) 152 Comment
  SD154629  Ambrosia chenopodiifolia Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6723 San Diego Moody Canyon area, just east of San Ysidro Jr. High School 89 Comment
  SEINET2044454 Image available Ambrosia chenopodiifolia Jon P. Rebman, B. Lauri, K. Rich, O. Solis, John K. 2000-5-26 6723 San Diego Moody Canyon area, jest east of San Ysidro Jr. High School. 90 Comment
  UC1118433  Ambrosia chenopodiifolia H. A. Jensen 1931-1-28 110 San Diego near Tia Juana; San Diego Quad. 91 Comment
  UC1787374  Ambrosia chenopodiifolia Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6723 San Diego Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  UC55270  Ambrosia chenopodiifolia Geo. B. Grant April 1902 1637 San Diego American side Tia Juana Comment
  UCR147169  Ambrosia chenopodiifolia Jon P. Rebman, K. Rich, Robert K. Lauri 2000-5-26 6723 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  RSA696002  Ambrosia confertiflora Jon P. Rebman, K. Rich, B. Laurie, Oscar Solis 2000-5-26 6717 San Diego Moody Canyon area, just E of San Ysidro Jr. High School. 90 Comment
  SD154109  Ambrosia confertiflora Craig Reiser 2000-6-2 San Diego ca. 0.5 miles west of 805 Freeway in Otay Valley, south side of the valley, growing near trail in sage scrub at the foot of the slope Comment
  SD154628  Ambrosia confertiflora Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6717 San Diego Moody Canyon area, just east of San Ysidro Jr. High School 89 Comment
  SD242400  Ambrosia confertiflora Phillip Roullard 2010-8-12 310 San Diego Border Field State Park; 1.65 mile WSW of intersection Hollister Road and Monument Road; 550 yards N of the border EPA restoration site between the sediment basins on the East and Monument Rd. 4 Comment
  UC1787369  Ambrosia confertiflora Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6717 San Diego Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  UCR147151  Ambrosia confertiflora Jon P. Rebman, Et al. 2000-5-26 6717 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  CAS-BOT-BC126798  Ambrosia monogyra Harley P. Chandler 1903-10-3 4116 San Diego South San Diego 7 Comment
  SD13032  Ambrosia monogyra Frank F. Gander 1936-1-10 401 San Diego 1 mile west of Monument School Comment
  SD85822  Ambrosia monogyra R. Mitchel Beauchamp, R. C. Pierce 1970-12-5 1395 San Diego Tijuana River Valley 4 Comment
  SD201444  Amsinckia intermedia Phillip Roullard 2008-2-29 182 San Diego Border Field State Park, at the eastern base of Bunker Hill, south of city of Imperial Beach. South Mesa, flat area just north of US/Mexico Border fence, 1 mi E of Pacific Ocean and about .1 mi NW of Border Monument 257 85 Comment
  SD193661  Amsinckia menziesii var. menziesii Phillip Roullard 2007-3-31 141 San Diego Otay Mesa, Border Field State Park, Border Field Bluffs, Ao mi W of Hollister Street, Ao mi N of U.S. Mexico border 24 Comment
  SD259129  Amsinckia spectabilis var. spectabilis Susan T Welker 1993-5-2 San Diego Tijuana River Valley. SW corner of Sunset and International, Imperial Beach 7 Comment
  SD247952  Anagallis arvensis Phillip Roullard 2010-3-1 326 San Diego Border Field State Park; Monument Mesa, W end; 200 yards E of Pacific Ocean and 200 yards N of the border; parking lot adjacent to Monument Mesa on the north side 11 Comment
  POM169012  Anemopsis californica Minnie Reed 1896-7-16 s.n. San Diego Otay Road. Comment
  SD170518  Anemopsis californica Phillip Roullard 2005-6-3 64 San Diego Tijuana Slough National Wildlife Refuge, trail NW of Visitor Center, along drainage just W of intersection of Caspian Way and 3rd Ave. 6 Comment
  SEINET3132413  Anogra trichocalyx Unknown 1903-5-15 3510 San Diego Tia Juana Rv., Tia Juana; S CA Comment
  SDSU10458  Antirrhinum nuttallianum R. M. Beauchamp 1965-6-17 San Diego Boundary Monument #258. Comment
  JEPS83394  Antirrhinum nuttallianum subsp. subsessile David M. Thompson 1983-4-29 277 San Diego Border Field State Park Imperial Beach Quad. (7.5', 1967) (along Monument Road, facing broad mud flats) 6 Comment
  SD15073  Antirrhinum nuttallianum subsp. subsessile Frank F. Gander 1936-4-28 1663 San Diego U.S. Boundary Monument 258 Comment
  SD170509  Antirrhinum nuttallianum subsp. subsessile Phillip Roullard 2005-4-15 26 San Diego Border Field State Park, S of city of Imperial Beach. South Mesa, flat area just northwest of US/Mexico Border fence, 1 mi E of Pacific Ocean. 14 Comment
  SD170510  Antirrhinum nuttallianum subsp. subsessile Phillip Roullard 2005-6-3 61 San Diego Tijuana Slough National Wildlife Refuge. From Tijuana estuary visitor center parking lot, south on the McCoy trail 0.25 miles, 60' off the trail to the west. 4 Comment
  SD196658  Antirrhinum nuttallianum subsp. subsessile Kim Marsden, Cindy Burrascano 2003-3-15 170 San Diego San Diego, Borderfield State Park, Lichty Mesa, 0.33 mi E of beach, 30 yds N of US/Mexico border 24 Comment
  SD196659  Antirrhinum nuttallianum subsp. subsessile Phillip Roullard 2006-5-6 102 San Diego Imperial Beach, Tijuana Slough National Wildlife Refuge, Ao mi N of Boundary Road along western edge of Imperial Beach Naval Landing Field, 350 yards E of El Centro Street 3 Comment
  SD249045  Antirrhinum nuttallianum subsp. subsessile Phillip Roullard, Chris Peregrin 2010-3-15 302 San Diego Border Field State Park; 1.4 mile WSW of intersection Hollister Road and Monument Road; 150 yards N of the border; West Side of Bunker Hill 70 Comment
  POM156450  Aphanisma blitoides L. R. Abrams 1903-5-14 3480 San Diego Hills at Tia Juana, U.S. side of line. Comment
  SD112588 Image available Aphanisma blitoides Darley F. Howe 1941-6-15 1113 San Diego Tia Juana Valley, Alkali flat near ocean. Comment
  SD203207  Apiastrum angustifolium Phillip Roullard 2008-3-14 198 San Diego Border Field State Park, at the eastern base of Bunker Hill, south of city of Imperial Beach. South Mesa, flat area just north of US/Mexico Border fence, 1 mi E of Pacific Ocean and about .1 mi NW of Border Monument 257 70 Comment
  SD235782  Apiastrum angustifolium Phillip Roullard, Chris Peregrin 2010-3-15 299 San Diego Border Field State Park; 1.4 mile WSW of intersection Hollister Road and Monument Road; 150 yards N of the border; West Side of Bunker Hill 70 Comment
  POM3323  Apium graveolens Minnie Reed 1896-8-16 s.n. San Diego Otay Comment
  SD235783  Apium graveolens Phillip Roullard 2010-8-12 311 San Diego Border Field State Park; 1.65 mile WSW of intersection Hollister Road and Monument Road; 550 yards N of the border EPA restoration site between the sediment basins on the East and Monument Rd. 4 Comment
  SD22012  Apocynum cannabinum Frank F. Gander 1938-7-25 6151 San Diego Tia Juana River at Monument School Comment
  CAS-BOT-BC84905  Artemisia californica A. C. Herre 1902-8-8 s.n. San Diego Near Oneonta Comment
  SD219282  Artemisia californica Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22509 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; north-facing slope near top of Bunker Hill 105 Comment
  SD113197  Artemisia douglasiana Darley F. Howe 1935-7-4 279 San Diego Lower Tia Juana Valley Comment
  SD219285  Artemisia dracunculus Jon P. Rebman, W. Schmidtmann and J. Rocks 2012-2-17 22546 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; north of the USA/Mexico border fence; lower north-facing slope of Bunker Hill near dirt road and canyon bottom 20 Comment
  SD83586  Artemisia dracunculus R. Mitchel Beauchamp, R. C. Pierce 1970-12-21 1483 San Diego Tijuana River Valley, sandy area north of river. 4 Comment
  SD219286  Artemisia palmeri Jon P. Rebman, W. Schmidtmann and J. Rocks 2012-2-17 22533 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; north of the USA/Mexico border fence; lower north-facing slope of Bunker Hill near dirt road and canyon bottom 20 Comment
  SD242410  Artemisia palmeri Phillip Roullard, Jon Rebman 2009-4-18 259 San Diego Border Field State Park; Imperial Beach; 1.2 miles WSW of intersection Hollister Road and Monument Road near sedimentation basin, W of Spooner's mesa 3 Comment
  SD112487  Arthrocnemum subterminale Darley F. Howe 1935-6-2 166 San Diego Sea beach, mouth of Tia Juana River. Comment
  SD13249  Arthrocnemum subterminale Frank F. Gander 1936-1-28 493 San Diego Shore of Pacific near Monument 258. Comment
  SD171234  Arundo donax Phillip Roullard 2005-6-24 82 San Diego Smuggler's Canyon (NE section), S of city of Imperial Beach, on Monument Rd just E of intersection with Hollister St. 10 Comment
  SD115696  Asparagus asparagoides Duffie Clemons 1984-5-8 835 San Diego In bed of small canyon north of Palm Ave. and Desty, Imperial Beach quadrangle. 17 Comment
  SBBG60641  Aster R. Hoffmann 1928-10-18 Unknown Tia Juana [Tijuana] Comment
  SBBG60642  Aster R. Hoffmann 1928-10-17 Unknown Tia Juana [Tijuana] Comment
  CDA10348  Aster spinosus T. C. Fuller 1962-10-16 9762 San Diego In wash of Tia Juana River, south of Highway 101 freeway at Dairy Mart Road, San Yisdro. 0 Comment
  CLARK-A1045-1326  Aster spinosus George K. Helmkamp 1977-10-9 San Diego Imperial Beach along 19th Street; weed in farmland; Imperial Beach 7.5'Q Comment
  CLARK-A1045-1327  Aster spinosus George K. Helmkamp 1977-10-9 San Diego Imperial Beach along 19th Street; weed in farmland; Imperial Beach 7.5'Q Comment
  RSA739268  Astragalus R. E. Riefner 2008-11-7 08 -352 San Diego City of Imperial Beach, Tijuana Estuary, SW of 5th St. and Iris Ave, W of Browns Airfield. 13 Comment
  CAS-BOT-BC177480  Astragalus asymmetricus Geo. B. Grant 1902-4-19 1644 San Diego Tia Juana Comment
  SBBG129230  Astragalus didymocarpus L. Abrams 1903-5-15 3517 San Diego near Tia Juana Comment
  UC153902  Astragalus didymocarpus LeRoy Abrams 1903-5-15 3517 San Diego along roadside near Tia Juana; near Tia Juana Comment
  CAS-BOT-BC293710  Astragalus didymocarpus var. didymocarpus LeRoy Abrams 1903-5-15 3517 San Diego Near Tia Juana Comment
  CAS-BOT-BC350711  Astragalus didymocarpus var. didymocarpus LeRoy Abrams 1903-5-15 3517 San Diego Near Tia Juana Comment
  SEINET4030499  Astragalus douglasii O. M. Clark 1941-1 10060 San Diego Imperial Beach. Comment
  UCSB45153  Astragalus trichopodus Arthur, R. 1979-3-29 San Diego On west facing slope of Border Field Park Road; 1/2 mile from the beach; behind the Naval Air Station at Imperial Beach 3 Comment
  CAS-BOT-BC435894  Astragalus trichopodus var. lonchus LeRoy Abrams 1903-5-15 3497 San Diego near Tia Juana Comment
  RSA415749  Astragalus trichopodus var. lonchus E. S. Spalding 1924-4-14 s.n San Diego San Isidro [Ysidro]. Comment
  RSA43744  Astragalus trichopodus var. lonchus E. B. Higgins 1949-3-1 s.n San Diego Coones Ranch Mexican Boundary about 2 miles from the ocean. Comment
  RSA739267  Astragalus trichopodus var. lonchus R. E. Riefner Jr. 2008-11-7 08 -357 San Diego City of Imperial Beach, Tijuana Estuary, SW of 5th St. and Iris Ave., W of Browns Airfield. 4 Comment
  RSA799711  Astragalus trichopodus var. lonchus LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5915 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SBBG80935  Astragalus trichopodus var. lonchus F. Gender 1938-2-16 4943 San Diego Imperial Beach, near sea level Comment
  SD13240  Astragalus trichopodus var. lonchus Frank F. Gander 1936-1-28 491 San Diego Shore of Pacific near Boundary Monument. Comment
  SD174301  Astragalus trichopodus var. lonchus Phillip Roullard 2005-6-10 69 San Diego Tijuana Slough National Wildlife Refuge, Rivermouth trail. 0.6 mi SWS of trailhead at intersection of 5th St and Iris Ave, just W of SW section of Imperial Beach Naval Air Station. 3 Comment
  SD201595  Astragalus trichopodus var. lonchus Phillip Roullard 2008-2-29 181 San Diego Border Field State Park, south of city of Imperial Beach. South Mesa, flat area just north of US/Mexico Border fence, 1 mi E of Pacific Ocean 59 Comment
  SD67587  Astragalus trichopodus var. lonchus E. B. Higgins 1949-3-1 San Diego Coones Ranch Mexican Boundary, ca. 2 miles from ocean. Comment
  SD80831  Astragalus trichopodus var. lonchus Helen V. Witham 1970-10-12 1166 San Diego 1.1 miles south of Third and Palm, Imperial Beach; disturbed area, edge of slough. 2 Comment
  UC56525  Astragalus trichopodus var. lonchus Geo. B. Grant April, 1902 1644 San Diego Tia Juana , American side (American side) Comment
  UCR202778  Astragalus trichopodus var. lonchus Phillip Roullard 2008-2-29 181 San Diego South Coast, Border Field State Park, south of city of Imperial Beach. South Mesa, flat area just north of US/Mexico Border fence, 1 mi east of Pacific Ocean. Square W10 59 Comment
  UCR249226  Astragalus trichopodus var. lonchus LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5915 San Diego Coastal Plains and Basins; South Coastal Plain Region, Lichty Mesa, Borderfield State Park 20 Comment
  CDA23346  Atriplex R. E. Riefner Jr. 2007-3-3 Jul- 93 San Diego Imperial Beach, Tijuana Estuary, vicinity of 3rd Street and Caspian Way. Comment
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Feb 28 2016
  UCR130258  Atriplex Robert Noll 2003-11-19 s.n. San Diego Tijuana River valley, Tijuana River Estuary, near west end of Dairy Mart/Monument Road, west of Goat Canyon mouth, SW of gate and kiosk 3 Comment
  UCR130265  Atriplex Robert Noll 2003-11-19 s.n. San Diego Tijuana River valley, Tijuana River Estuary, near west end of Dairy Mart/Monument Road, west of Goat Canyon mouth, SW of gate and kiosk 3 Comment
  SD112464  Atriplex argentea var. expansa Darley F. Howe 1935-7-4 276 San Diego Salt flat, lower Tia Juana Valley. Comment
  SDSU17579  Atriplex californica Michael G. Simpson 2000-5-5 2112 San Diego Tijuana Estuary, along path from southern end of 5th Street, Imperial Beach, ca. 1/4 mile ssw from corner of 5th and Iris. 2 Comment
  SEINET5344736  Atriplex californica K. Brandegee 1899-1 s.n. San Diego Initial monument Comment
  UC110236  Atriplex californica Katharine Brandegee July 1899 San Diego Initial Monument Comment
  UC110238  Atriplex californica K. Brandegee July 1899 San Diego Initial Monument Comment
  A376296  Atriplex canescens M. F. Spencer 1921-10-24 59 Unknown Salt Marsh near Mex. Bound. Comment
  CDA23241  Atriplex canescens T. C. Fuller 1962-10-16 9759 San Diego Tia Juana River, south of Highway 101 freeway at Dairy Mart Road, San Ysidro. 0 Comment
  CHSC109283  Atriplex canescens R. E. Riefner Jr. 2007-3-3 07 -91 San Diego Imperial Beach, Tijuana Estuary, near old gravel lpit ca 1.5 mi S from corner of 5th St. and Grove Rd. UTM: 11S 0488186E 3602889N 3 Comment
  GH376312  Atriplex canescens M. F. Spencer 1921-10-24 1898 Unknown In salt marsh near Mexican line Comment
  RSA737848  Atriplex canescens R. E. Riefner 2007-3-3 07 /01/1991 San Diego Imperial Beach, Tijuana Estuary, near old gravel pit ca. 1.5 mi S from corner of 5th St. and Grove Rd. 4 Comment
  SD112469  Atriplex canescens Darley F. Howe 1935-7-7 275 San Diego Seabeach, mouth of Tia Juana River. Comment
  SD18238  Atriplex canescens A. J. Stover 1937-7-5 San Diego Nat. Monument (mak 3/07) Comment
  SD83495  Atriplex canescens R. Mitchel Beauchamp, R. C. Pierce 1970-9-18 1321 San Diego North end of tidal marsh, Imperial Beach. Comment
  SDSU5525  Atriplex canescens unknown 1931-7-1 San Diego Tiajuana River Estuary. Comment
  SDSU5531  Atriplex canescens J. E. Fitch 1940-12-17 2229 San Diego Tiajuana Estuary. Comment
  UC110303  Atriplex canescens Katharine Brandegee July 1903 San Diego banks Tia Juana River; banks of Tia Juana River Comment
  UCR203893  Atriplex canescens R. E. Riefner Jr. 2007-3-3 07- 91 San Diego South Coast, Imperial Beach, Tijuana Estuary, near old gravel pit c. 1.5 mi south from corner of 5th Street and Grove Road 4 Comment
  SD112468  Atriplex canescens var. canescens Darley F. Howe 1935-8-4 295 San Diego Lower Tijuana River. Comment
  SDSU19767  Atriplex coulteri Michael G. Simpson, Debbie Wood, Lisa Cox 2011-4-28 3418 San Diego Tijuana Estuary. Edge of walking path, ca. 0.3 mile south of junction with 5th and Iris, Imperial Beach. 2 Comment
  SEINET4075632  Atriplex decumbens O. M. Clark 1941-1 10066 San Diego Imperial Beach. Comment
  SD112533  Atriplex leucophylla Darley F. Howe 1935-6-2 251 San Diego Beach, Tia Juana River. Comment
  SD13260  Atriplex leucophylla Frank F. Gander 1936-1-28 510 San Diego On beach near Boundary Monument 258. Comment
  RSA737474  Atriplex lindleyi R. E. Riefner 2007-3-3 7 -89 San Diego Imperial Beach, Tijuana Estuary, near old gravel pit ca. 1.5 mi S from corner of 5th St. and Grove Rd. 4 Comment
  RSA739271  Atriplex lindleyi R. E. Riefner 2008-11-7 08 -353 San Diego City of Imperial Beach, Tijuana Estuary, SW of 5th St. and Iris Ave, W of Brown s Airfield. 13 Comment
  SBBG122003  Atriplex lindleyi R. E. Riefner 2007-3-3 07 -89 San Diego Tijuana Estuary, near old gravel pit, ca. 1.5 mi S from corner of 5th Street and Grove Rd; Imperial Beach 3 Comment
  SBBG133369  Atriplex lindleyi R. E. Riefner Jr. 2008-11-7 353 San Diego Tijuana Estuary, SW of 5th St and Iris Ave, W of Brown's Airfield; Imperial Beach 12 Comment
  CDA2949  Atriplex lindleyi subsp. inflata R. E. Riefner Jr. 2007-3-3 Jul- 89 San Diego Imperial Beach, Tijuana Estuary, near old gravel pit ca. 1.5 miles south from corner of 5th Street and Grove Road. Comment
  SD154341  Atriplex pacifica Catherine MacGregor 2003-6-27 6 San Diego next to Riviera del Sol subdivision, west slope of Otay Mesa 136 Comment
  SD235974  Atriplex pacifica Phillip Roullard 2008-8-1 215 San Diego Border Field State Park, south of city of Imperial Beach. South Mesa, flat area 50 yards north of US/Mexico Border fence, .90 mi E of Pacific Ocean 32 Comment
  SD112540  Atriplex rosea Darley F. Howe 1936-7-19 396 San Diego Lower Tia Juana River Comment
  SD13262  Atriplex semibaccata Frank F. Gander 1936-1-28 515 San Diego Salt marsh 1I(c) miles northeast of monument 258 Comment
  SD112471  Atriplex serenana var. serenana Darley F. Howe 1935-7-7 277 San Diego Lower Tia Juana River Comment
  SD222183  Atriplex suberecta Mark A. Elvin, Tricia Wotipka 2004-11-4 3815 San Diego Southern coastal; San Ysidro; Tijuana River Valley, N of Tijuana R., near intersection of Saturn and Leon Rds. 7 Comment
  UCR175604  Atriplex suberecta Mark A. Elvin, Tricia Wotipka 2004-11-4 3815 San Diego Southern Coastal, San Ysidro: Tijuana River Valley, N of Tijuana River near the intersection of Saturn and Leon Rds 8 Comment
  RSA65347  Atriplex watsonii F. W. Peirson 1923-3-27 3413 San Diego Imperial Beach. Comment
  SD22015  Atriplex watsonii Frank F. Gander 1938-7-25 6154 San Diego Near boundary Monument number 258. Comment
  UCR26844  Atriplex watsonii A. C. Sanders 1982-6-6 2704 San Diego South Coast, Imperial Beach, mouth of the Tijuana River 2 Comment
  SD219173  Avena barbata Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22477 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  SD221515  Avena fatua Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22488 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  SDSU12703  Avena fatua Michael G. Simpson, Shaun Boyle, Jerry Borjeson 1997-1-22 22 I97A San Diego Tiajuana Estuary, 5th parking lot 3 Comment
  CAS-BOT-BC99804  Baccharis salicifolia Alice Eastwood 1913-4-24 2923 San Diego [Tia Juana] Tijuana Comment
  CAS-BOT-BC99808  Baccharis salicifolia A. C. Herre 1902-8-8 s.n. San Diego [Tia Juana] Tijuana River Comment
  CAS-BOT-BC99817  Baccharis salicifolia Alice Eastwood 1913-4-24 2924 San Diego [Tia Juana] Tijuana Comment
  SD83487 Image available Baccharis salicifolia subsp. salicifolia R. Mitchel Beauchamp, R. C. Pierce 1970-12-5 1408 San Diego Tijuana River Valley. 4 Comment
  CDA10390  Baccharis sarothroides T. C. Fuller 1962-10-16 9761 San Diego In wash of Tia Juana River, south of Highway 101 freeway at Dairy Mart Road, San Yisdro. 0 Comment
  SD219291  Baccharis sarothroides Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22484 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  LA204013  Bahiopsis laciniata Ira L. Wiggins; 1928-6-16 3233 San Diego Near Nestor Comment
  RSA43747  Bahiopsis laciniata Higgins 1949-3-1 s.n. San Diego Coones Ranch, Mexican border about 2 miles from ocean Comment
  RSA689611  Bahiopsis laciniata Jon P. Rebman, B. Lauri, K. Rich 2000-5-26 6726 San Diego Moody Canyon area, just E of San Ysidro Jr. High School. 90 Comment
  SD154605  Bahiopsis laciniata Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6726 San Diego Moody Canyon area, just east of San Ysidro Jr. High School 89 Comment
  SD219292  Bahiopsis laciniata Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22474 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  CDA23892  Batis maritima J. L. Johnson 1972-6-29 San Diego Palm City Sewer Station #9, 0.25 mile west of 19th & Canal, Imperial Beach. 0 Comment
  UCR26614  Batis maritima O. F. Clarke 1967-10-21 s.n. San Diego Mouth of Tijuana River 2 Comment
  CAS-BOT-BC56681  Bergerocactus LeRoy Abrams 1903-5-14 3473 San Diego Field redacted by CAS, contact the data manager for more information Comment
  POM156429  Bergerocactus emoryi L. R. Abrams 1903-5-14 3473 San Diego [Tijuana]. American side of the boundary Comment
  POM285764  Bergerocactus emoryi Lyman Benson 1950-4-29 14337 San Diego Northwest corner of Spooner Ranch. 1/2 mile north of Mex. 15 Comment
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Mar 20 2014
  POM317759  Bergerocactus emoryi Edward Anderson 1963-7-12 1994 San Diego 1/4 mile north of the international border and about 1 mile east of the Pacific Ocean. Followed Dairy Mart Road south from freeway to Monument Road; then west toward ocean. Last large hill next to the road. 30 Comment
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Mar 20 2014
  RSA438415  Bergerocactus emoryi H. G. Rush 1948-5-30 s.n. San Diego Approx. 1 mile east of monument on seacoast at Mexican boundary. Comment
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Mar 20 2014
  RSA799785  Bergerocactus emoryi LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5932 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD113520  Bergerocactus emoryi Darley F. Howe 1940-4-21 999 San Diego South side of Tia Juana Valley, bluff about 1 mile from ocean. (IPB 6/07) Comment
  SD13209  Bergerocactus emoryi Frank F. Gander 1935-1-28 488 San Diego Shore of Pacific, near Boundary Monument 258. (IPB 6/07) Comment
  SD83549 Image available Bergerocactus emoryi R. Mitchel Beauchamp 1971-2-21 1639 San Diego Spooner's Mesa near Int'l. Border northeast of Goat Canyon. forming colonies on slopes 124 Comment
  SEINET224232  Bergerocactus emoryi Lyman Benson 1950-4-29 14337 San Diego Northwest corner of spooner Ranch, 1/2 mile east of the ocean. 1/2 mile north of Mexico. Pacific Slope . South Comment
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Mar 20 2014
  UCR147155  Bloomeria crocea Jon P. Rebman, K. Rich, O. Solis, John Klavzar, Robert K. Lauri 2000-5-26 6712 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  CAS-BOT-BC482065  Bloomeria crocea var. crocea LeRoy Abrams 1903-5-15 3498 San Diego Grassy hills at Tijuana Comment
  SD15051  Bloomeria crocea var. crocea Frank F. Gander 1936-4-28 1641 San Diego Otay. Comment
  SD154648  Bloomeria crocea var. crocea Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6712 San Diego Moody Canyon area, just east of San Ysidro Jr. High School. (IPB 1/07) 89 Comment
  SD171265  Bolboschoenus maritimus subsp. paludosus Phillip Roullard 2005-4-15 31 San Diego Border Field State Park, S of city of Imperial Beach. On road (East/West) paralleling US/Mexico border fence in between South Mesa and Lichty mesa. 4 Comment
  CAS-BOT-BC145596  Bothriochloa laguroides subsp. torreyana S. G. Stokes 1895-6-1 s.n. San Diego Tia Juana. Comment
  CDA10182  Bougainvillea spectabilis P. Roullard 2007-4-11 156 San Diego Otay Mesa, Smugglers Gulch, 200 yards south of Monument Road, 1/4 mile southwest of intersection with Hollister Street, near drainage. (32.5421 N, 117.0879 W) Comment
  SEINET3240418  Bougainvillea spectabilis Phillip Roullard 2007-1 156 San Diego Otay Mesa, Smugglers Gulch, 200 yards S of Monument Road, 1/4 mi SW of Intersection with Hollister Street, near drainage. 13 Comment
  UCR203000  Bougainvillea spectabilis Phillip Roullard 2007-4-11 156 San Diego South Coast, Otay Mesa, Smugglers Gulch, 200 yards south of Monument Road, 0.25 mi southwest of the intersection with Hollister Street, near drainage 13 Comment
  SD219270  Bowlesia incana Jon P. Rebman, W. Schmidtmann and J. Rocks 2012-2-17 22532 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; north of the USA/Mexico border fence; lower north-facing slope of Bunker Hill near dirt road and canyon bottom 20 Comment
  RSA799781  Brassica tournefortii LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5928 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD219410  Brassica tournefortii Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22473 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  SD237718  Brassica tournefortii Phillip Roullard, Jon Rebman 2009-4-18 248 San Diego Border Field State Park; Imperial Beach; W side of Bunker Hill near border; 1.34 miles SW of intersection Hollister Road and Monument Road 82 Comment
  UCR249223  Brassica tournefortii LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5928 San Diego Coastal Plains and Basins; South Coastal Plain Region, Lichty Mesa, Borderfield State Park 20 Comment
  CAS-BOT-BC484528  Brodiaea jolonensis Harley P. Chandler 1904-4-24 5112 San Diego Otay Comment
  SD246996  Bromus catharticus var. catharticus Phillip Roullard, Jon Rebman 2009-4-18 245 San Diego Border Field State Park; Imperial Beach; W side of Bunker Hill near border; 1.34 miles SW of intersection Hollister Road and Monument Road 82 Comment
  SDSU950  Bromus diandrus Richard C. Schwenkmeyer 1975-2-27 San Diego Collected at Imperial Beach Comment
  SD247012  Bromus madritensis subsp. madritensis Phillip Roullard, Jon Rebman 2009-4-18 260 San Diego Border Field State Park; Imperial Beach; 1.2 miles WSW of intersection Hollister Road and Monument Road near sedimentation basin, W of Spooner's mesa 3 Comment
  SD221517  Bromus madritensis subsp. rubens Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22475 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  RSA799716  Bromus rubens LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5910 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD219189  Bromus sterilis Jon P. Rebman, W. Schmidtmann and J. Rocks 2012-2-17 22530 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; north of the USA/Mexico border fence; lower north-facing slope of Bunker Hill near dirt road and canyon bottom 20 Comment
  SD113124  Cakile edentula var. californica Darley F. Howe 1936-5-24 339 San Diego Tiajuana River; sea-beach. Comment
  SD15080  Cakile edentula var. edentula Frank F. Gander 1936-4-28 1670 San Diego U. S. Boundry Monument #258. Comment
  CLARK-A1045-1325  Cakile maritima George K. Helmkamp 1977-10-15 San Diego Imperial Beach in Border Field State Park; isandy area just off beach, ; Imperial Beach 7.5'Q Comment
  SD193700  Cakile maritima Phillip Roullard 2006-2-25 96 San Diego Imperial Beach, Border Field State Park, on beach, I(c) mi W of Monument Road, Ao N of U.S. and Mexico border 3 Comment
  SD79416  Cakile maritima Reid Moran 1970-2-7 16725 San Diego On upper beach at Mexican Boundary Monument. 258. 99 Comment
  SD85530  Cakile maritima R. Mitchel Beauchamp 1971-5-1 2302 San Diego Tijuana Slough Comment
  SD200965  Calandrinia ciliata Phillip Roullard 2008-3-14 192 San Diego Border Field State Park, bottom of east facing slope, south towards the border fence, about 1.3 mi east of Pacific Ocean and .15 miles northeast of Border Monument #257 27 Comment
  CAS-BOT-BC233947  Calandrinia maritima LeRoy Abrams 1903-5-15 3471 San Diego Tia Juana Comment
  POM156428  Calandrinia maritima L. R. Abrams 1903-5-15 3471 San Diego Hills at Tia Juana. Comment
  UC149304  Calandrinia maritima LeRoy Abrams 1903-5-15 3471 San Diego hills at Tia Juana Comment
  SD15050  Calochortus splendens Frank F. Gander 1936-4-28 1640 San Diego Otay. Comment
  SD174570  Calochortus splendens Phillip Roullard 2005-5-6 43 San Diego Border Field State Park, S of city of Imperial Beach. 0.2 mi north of US/Mexico border fence, 1.3 mi E of Pacific Ocean, SW of Goat Canyon. 31 Comment
  RSA1734  Calycadenia tenella C. B. Wolf 1931-5-26 2089 San Diego 1 mile SW of Otay, on the road to Tijuana. 61 Comment
  SD162656 Image available Calystegia macrostegia subsp. cyclostegia Phillip Roullard 2005-5-13 50 San Diego South of the city of Imperial Beach, E side of Smuggler Gulch, 0.2 mi N of US/Mexico border fence, 0.2 mi SW of intersection of Hollister Rd and Monument Rd. 36 Comment
  SD170823  Calystegia macrostegia subsp. cyclostegia Phillip Roullard 2005-6-10 71 San Diego Tijuana Slough National Wildlife Refuge, Rivermouth trail. 0.6 mi SWS of trailhead at intersection of 5th St and Iris Ave, just W of SW section of Imperial Beach Naval Air Station. 3 Comment
  SD154581  Calystegia macrostegia subsp. intermedia Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6707 San Diego Moody Canyon area, just east of San Ysidro Jr. High School 89 Comment
  SD198365  Calystegia macrostegia subsp. intermedia Phillip Roullard 2007-4-11 142 San Diego Imperial Beach, Tijuana Slough National Wildlife Refuge, Ao mi N of Boundary Road along western edge of Imperial Beach Naval Landing Field, 280 yards E of El Centro Street 3 Comment
  UCR147158  Calystegia macrostegia subsp. intermedia Jon P. Rebman, K. Rich, O. Solis, John Klavzar, Robert K. Lauri 2000-5-26 6707 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  UCR203001  Calystegia macrostegia subsp. intermedia Phillip Roullard 2007-4-11 142 San Diego South Coast, Imperial Beach Tijuana Slough National Wildlife Refuge, 0.25 mi north of Boundary Road along wetern edge of Imperial Beach Naval Landing Field, 280 yards east of El Centro Street. Square V10 4 Comment
  SD219454  Calystegia macrostegia subsp. tenuifolia Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22490 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  UCR30830  Calystegia soldanella John C. Roos 1937-6-13 2230 San Diego Imperial Beach Comment
  UC1015848  Camissonia E. B. Higgins 1954-4-26 San Diego pool under bridge Otay Comment
  UC429833  Camissonia Ira L. Wiggins 1928-6-16 3229 San Diego near Tia Juana; Nestor Comment
  POM265813  Camissonia cheiranthifolia subsp. suffruticosa J. C. Roos 1937-6-13 2014 San Diego Imperial Beach. Comment
  RSA454084  Camissonia lewisii E. S. Spalding 1924-4-14 s.n. San Diego San Isidro [Ysidro]. Comment
  RSA799715  Camissoniopsis bistorta LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5911 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD114081  Camissoniopsis bistorta Darley F. Howe 1936-5-24 344 San Diego Lower Tia Juana Valley Comment
  SD181102  Camissoniopsis bistorta Phillip Roullard 2005-4-15 33 San Diego Border Field State Park, S of city of Imperial Beach. Lichty Mesa, on road just north of U.S./Mexico border fence, 0.5 mi E of Pacific Ocean. 7 Comment
  SD206061  Camissoniopsis bistorta Kim Marsden, Cindy Burrascano 2003-3-15 169 San Diego San Diego, Borderfield State Park, Lichty Mesa, 0.33 mi E of beach, 30 yds N of US/Mexico border 24 Comment
  SD83585  Camissoniopsis bistorta R. Mitchel Beauchamp, R. C. Pierce 1970-12-21 1482 San Diego Riverbed, Tijuana River Valley. 4 Comment
  SDSU8823  Camissoniopsis cheiranthifolia unknown 1931-7-1 San Diego Tiajuana River Estuary. Comment
  CAS-BOT-BC160466  Camissoniopsis cheiranthifolia subsp. suffruticosa Edgar A. Mearns 1894-7-15 3936 San Diego Vicinity of Monument 258 P, Mexican boundary line Comment
  CAS-BOT-BC160468  Camissoniopsis cheiranthifolia subsp. suffruticosa Alice Eastwood 1913-4-24 2913 a San Diego Tia Juana Comment
  SD113998  Camissoniopsis cheiranthifolia subsp. suffruticosa Darley F. Howe 1936-5-24 343 San Diego Seashore, mouth of Tia Juana Valley Comment
  SD13217  Camissoniopsis cheiranthifolia subsp. suffruticosa Frank F. Gander 1936-1-28 508 San Diego on beach near Initial Monument 258 Comment
  SD206015  Camissoniopsis cheiranthifolia subsp. suffruticosa Phillip Roullard 2006-2-25 92 A San Diego Imperial Beach, Border Field State Park, on beach, I(c) mi W of Monument Road, Ao N of U.S. and Mexico border 3 Comment
  SD83476  Camissoniopsis cheiranthifolia subsp. suffruticosa R. Mitchel Beauchamp, R. C. Pierce 1970-12-5 1399 San Diego Tijuana River Valley 4 Comment
  CDA37987  Camissoniopsis hirtella T. C. Fuller 1962-10-16 9758 San Diego Tia Juana River, south of Highway 101 freeway at Dairy Mart Road, San Ysidro. 0 Comment
  SD138846  Camissoniopsis lewisii Craig Reiser 1996-4-24 San Diego Otay River Valley near the Mexican border, ca 100 feet west of Dairy Mart Road adjacent to the dense cat-tail marsh (south of the large pond) Comment
  SD181119  Camissoniopsis lewisii Phillip Roullard 2005-5-6 39 San Diego Border Field State Park, S of city of Imperial Beach. Lichty Mesa, on road just north of U.S./Mexico border fence, 0.5 mi E of Pacific Ocean. 10 Comment
  SD181124  Camissoniopsis robusta Phillip Roullard 2005-3-11 21 San Diego Border Field State Park, S of city of Imperial Beach. South Mesa, on dirt road heading west to Lichty Mesa, parallel to US/Mexico border fence, on embankment. 29 Comment
  SD247113  Cannabis sativa Phillip Roullard 2010-8-12 319 San Diego Border Field State Park; 1.65 mile WSW of intersection Hollister Road and Monument Road; 550 yards N of the border EPA restoration site between the sediment basins on the East and Monument Rd. 3 Comment
  SD237720  Capsella bursa-pastoris Phillip Roullard 2011-5-6 333 San Diego Border Field State Park; 1.65 mile WSW of intersection Hollister Road and Monument Road; 0.4 mile N of the border EPA restoration site between the sediment basins on the East and Monument Rd. 14 Comment
  SD193702  Cardaria chalepensis Phillip Roullard 2007-4-10 144 San Diego Imperial Beach, Tijuana Slough National Wildlife Refuge, E of Tower Road, Rivermouth Trail, N of Tijuana River, along W end of Imperial Beach Naval Auxillary Landing Field, 3 Comment
  SDSU18711  Cardaria chalepensis Kellie McFarland 2008-4-2 6 San Diego Tijuana River National Estuarine Research Reserve, Imperial Beach, at the end of the trail at Sunset road, across from Navy property. 3 Comment
  CDA10291  Cardaria draba P. Roullard 2007-4-1 144 San Diego Imperial Beach, Tijuana Slough National Wildlife Refuge, east of Tower Road, Rivermouth Trail, north of Tijuana River, along west end of Imperial Beach Naval Auxillary Landing Field. N 32.5583 W 117.0953 Comment
  SD113130 Image available Cardaria draba Darley F. Howe 1938-4-24 615 San Diego North side of Tia Juana Valley, just south of Nestor. Comment
  SD208734  Cardaria draba Phillip Roullard 2008-4-11 177 San Diego Border Field State Park, at the eastern base of Bunker Hill, on the southeast side of the trail, about 1.2 miles east of Pacific Ocean and .18 mi north of US/Mexico border 24 Comment
  CLARK-A1528-1131  Cardionema ramosissimum John C. Roos 1937-6-11 1476 San Diego Imperial Beach 6 Comment
  RSA25602  Cardionema ramosissimum C. B. Wolf 1941-6-27 10911 San Diego Extreme SW corner of the USA, about 500 ft. No. of initial Boundry Monument. 3 Comment
  RSA799712  Cardionema ramosissimum LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5914 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD13247  Cardionema ramosissimum Frank F. Gander 1936-1-28 504 San Diego Shore of Pacific near Boundary monument 258 Comment
  SD243629  Cardionema ramosissimum Phillip Roullard, Jon Rebman 2009-4-18 223 San Diego Border Field State Park; Imperial Beach; W side of Bunker Hill near border; 1.34 miles SW of intersection Hollister Road and Monument Road 82 Comment
  SD79412  Cardionema ramosissimum Reid Moran 1970-2-7 16723 San Diego 3 miles west of San Ysidro, north end of Tijuana Hills 99 Comment
  RSA689610  Carduus pycnocephalus Jon P. Rebman, B. Lauri, K. Rich 2000-5-26 6725 San Diego Moody Canyon area, just E of San Ysidro Jr. High School. 90 Comment
  SD154623  Carduus pycnocephalus Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6725 San Diego Moody Canyon area, just east of San Ysidro Jr. High School 89 Comment
  UCR147145  Carduus pycnocephalus Jon P. Rebman, Et al. 2000-5-26 6725 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  SD219141  Carex triquetra Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22507 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; north-facing slope near top of Bunker Hill 105 Comment
  SD15211  Carpobrotus chilensis Frank F. Gander 1936-1-28 San Diego Beach near 258 monument Comment
  SDSU2116  Carpobrotus chilensis unknown 1931-7-1 747 San Diego Tiajuana River Estuary Comment
  UCR26843  Carpobrotus chilensis A. C. Sanders 1982-6-6 2702 San Diego South Coast, Imperial Beach, mouth of the Tijuana River 2 Comment
  SD196168  Carpobrotus edulis Phillip Roullard 2007-4-11 157 San Diego San Diego, Borderfield State Park, I(c) mi S of westernmost end of Monument Road, just N of US / Mexico border, near beach 13 Comment
  SD83481  Carpobrotus edulis R. Mitchel Beauchamp, R. C. Pierce 1970-12-5 1404 San Diego Tijuana River Valley 4 Comment
  SEINET3240236  Carpobrotus edulis Phillip Roullard 2007-1 157 San Diego San Diego, Borderfield State Park, 1/2 mi S of westernmost end of Monument Road, just N of US/Mexico border, near beach. 13 Comment
  UCR203002  Carpobrotus edulis Phillip Roullard 2007-4-11 157 San Diego South Coast, San Diego, Border Field State Park, 0.5 mi south of westernmost end of Monument Road, just north of US/Mexico. Square W10 13 Comment
  SD219614  Castilleja affinis subsp. affinis Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22505 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; north-facing slope near top of Bunker Hill 105 Comment
  SD203321  Caulanthus heterophyllus var. heterophyllus Phillip Roullard 2008-2-29 170 San Diego Border Field State Park, at the eastern base of Bunker Hill, south of city of Imperial Beach. South Mesa, flat area just north of US/Mexico Border fence, 1 mi E of Pacific Ocean and about .1 mi NW of Border Monument 257 70 Comment
  SEINET3240373  Caulanthus heterophyllus var. heterophyllus Phillip Roullard 2008-1 170 San Diego Border Field State Park, at the eastern base of Bunker Hill, south of city of Imperial Beach. South Mesa, flat area just north of US/Mexico Border fence, 1 mi E of Pacific Ocean and about.1 mi NW of Border Monument 257. 70 Comment
  UCR202779  Caulanthus heterophyllus var. heterophyllus Phillip Roullard 2008-2-29 170 San Diego South Coast, Border Field State Park, at the eastern base of Bunker Hill, south of city of Imperial Beach. South Mesa, flat area just north of US/Mexico Border fence, 1 mi east of Pacific Ocean and c. 0.1 mi north of Border Monument 257. Square W10 70 Comment
  SD113151  Caulanthus lasiophyllus Darley F. Howe 1935-3-3 170 San Diego Otay Comment
  RSA231197A  Ceanothus verrucosus Reid V. Moran 1970-2-7 16724 San Diego North end of Tijuana Hills, 3 miles west of San Ysidro 100 Comment
  RSA398997  Ceanothus verrucosus Reid V. Moran 1970-2-7 16724 San Diego North end of Tijuana Hills, 3 miles west of San Ysidro 100 Comment
  SD79410  Ceanothus verrucosus Reid Moran 1970-2-7 16724 San Diego North end of Tijuana Hills, 3 miles west of San Ysidro 99 Comment
  CLARK-A1045-902  Cenchrus echinatus George K. Helmkamp 1977-10-16 San Diego Imperial Beach roadside, Silver Strand at 9th Street; disturbed soil; Imperial Beach 7.5'Q Comment
  SD112185  Cenchrus spinifex Darley F. Howe 1938-8-14 709 San Diego Alfalfa field, Lower Tia Juana Valley Comment
  SD26324  Cenchrus spinifex Darley F. Howe 1939-7-25 San Diego Tia Juana Valley, south of Nestor Comment
  CAS-BOT-BC277110  Centaurea melitensis LeRoy Abrams 1903-5-14 3482 San Diego Tia Juana Comment
  SD170900  Centaurea melitensis Phillip Roullard 2005-5-13 46 San Diego South of the city of Imperial Beach, E of Smuggler Gulch, on road just N of US/Mexico border fence, 0.4 mi SE of intersection of Hollister Rd and Monument Rd. 92 Comment
  SD170901  Centaurea melitensis Phillip Roullard 2005-6-3 56 San Diego Tijuana Slough National Wildlife Refuge. From Tijuana estuary visitor center parking lot, south on the McCoy trail 0.2 miles, east side of the trail. 2 Comment
  SD190902  Centaurea melitensis Phillip Roullard 2006-6-6 133 San Diego Otay Mesa, Border Field State Park, Border Field Bluffs, Ao mi W of Hollister Street, 200 yds N of U.S. Mexico border on top of mesa 14 Comment
  UC676810  Centaurea melitensis Ira L. Wiggins 1928-6-16 3231 San Diego Nestor Comment
  SD170887  Chaenactis glabriuscula var. glabriuscula Phillip Roullard 2005-4-15 34 San Diego Border Field State Park, S of city of Imperial Beach. South Mesa, flat area just west of US/Mexico border fence, 1 mi E of Pacific Ocean. 36 Comment
  SD85564  Chaenactis glabriuscula var. glabriuscula R. Mitchel Beauchamp 1971-5-2 2321 San Diego South of Tijuana Valley. 22 Comment
  CAS-BOT-BC100668  Chaenactis glabriuscula var. orcuttiana Carl B. Wolf 1941-6-27 10911 San Diego Extreme SW. corner of the U.S.A. about 500 fr. N. of initial boundary monument 3 Comment
  SD113078  Chaenactis glabriuscula var. orcuttiana Darley F. Howe 1935-6-2 254 San Diego Mouth of Tia Juana Valley. Comment
  SD15070  Chaenactis glabriuscula var. orcuttiana Frank F. Gander 1936-4-28 1660 San Diego U. S. Boundary Monument 258. Comment
  SD190689  Chasmanthe floribunda John Boland 2009-3-9 San Diego Tijuana River Valley Regional Park, north-facing slope above Monument Road. Note: enclosed map marks a point west of Saturn/19th St, about at the northernmost bend of Monument Rd. Comment
  SD245509  Chasmanthe floribunda Phillip Roullard 2008-3-5 222 San Diego Imperial Beach; Tijuana River Valley; along Monument Road; 0.86 mile W of junction with Hollister Road. 21 Comment
  SD219445  Chenopodium californicum Jon P. Rebman, W. Schmidtmann and J. Rocks 2012-2-17 22540 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; north of the USA/Mexico border fence; lower north-facing slope of Bunker Hill near dirt road and canyon bottom 20 Comment
  SD263817  Chenopodium californicum Phillip Roullard, Jon Rebman 2009-4-18 261 San Diego Border Field State Park; Imperial Beach; 1.2 miles WSW of intersection Hollister Road and Monument Road near sedimentation basin, W of Spooner's mesa 3 Comment
  RSA692082  Chenopodium macrospermum O. F. Clarke 1973-10-30 s.n. San Diego Pacific Coast: Border Field State Park, 100 yards from tidal zone. 0 Comment
  UCR14016  Chenopodium macrospermum O. F. Clarke 1973-10-30 s.n. San Diego Pacific Coast, Border Field State Park, 100 yards from tidal zone 0.5 Comment
  SD13377  Chenopodium murale Frank F. Gander 1936-1-28 522 San Diego Tiajuana River near Monument, School Comment
  SD263825  Chenopodium murale Phillip Roullard, Jon Rebman 2009-4-18 264 San Diego Border Field State Park; Imperial Beach; 1.2 miles WSW of intersection Hollister Road and Monument Road near sedimentation basin, W of Spooner's mesa 10 Comment
  CAS-BOT-BC166239  Chloracantha spinosa S. G. Stokes 1895-7-1 s.n. San Diego Tia Juana Comment
  CAS-BOT-BC166242  Chloracantha spinosa A. C. Herre 1902-7-1 s.n. San Diego San Diego near Tia Juana Comment
  CAS-BOT-BC166245  Chloracantha spinosa A. C. Herre 1902-8-1 s.n. San Diego Tia Juana Rv. Comment
  CAS-BOT-BC166247  Chloracantha spinosa H. P. Chandler 1903-10-3 4113 San Diego South San Diego 7 Comment
  POM266290  Chloracantha spinosa J. C. Roos 1937-8-30 2223 San Diego San Ysidro Comment
  POM50125  Chloracantha spinosa A. C. Herre 1902-8-8 s.n. San Diego Tia Juana River Comment
  SD222157  Chloracantha spinosa Mark A. Elvin, Tricia Wotipka 2004-11-4 3822 San Diego Southern Coastal; Tijuana River Valley; flood plain on N side of river near Sunset Dr. 4 Comment
  SD254836  Chloracantha spinosa Susan T Welker 1993-5-2 San Diego Imperial Beach, Tijuana River Valley. Southwest corner of Sunset and International. 7 Comment
  UCR175779  Chloracantha spinosa Mark A. Elvin, Tricia Wotipka 2004-11-4 3822 San Diego Southern Coastal, San Ysidro: Tijuana River Valley, floodplain on north side of the river near Sunset Dr 5 Comment
  SD128735  Chloracantha spinosa var. spinosa Darley F. Howe 1935-6-23 243 San Diego Lower Tia Juana Valley. Comment
  SD22011  Chloracantha spinosa var. spinosa Frank F. Gander 1938-7-25 6150 San Diego Tijuana River at Monument School. Comment
  SD85762 Image available Chloracantha spinosa var. spinosa R. Mitchel Beauchamp, R. C. Pierce 1970-12-5 1402 San Diego In riverbed and nearby, Tijuana River Valley. 4 Comment
  SDSU6341  Chloracantha spinosa var. spinosa J. E. Fitch 1940-12-17 8900 San Diego TiaJuana Est. Comment
  SD20230 Image available Chloris gayana Frank F. Gander 1938-1-7 4903 San Diego 1 mile south of Otay Comment
  UC573740  Chloris gayana H. S. Yates 1937-7-2 6803 San Diego 2 mi nw Tiajuana; San Diego Quad. Comment
  LA103878  Chloropyron maritimum Frank F. Gander; 1938-7-25 6152 San Diego Near the Boundary Monument 0 Comment
  CAS-BOT-BC237983  Chloropyron maritimum subsp. maritimum Lewis S. Rose 1935-7-12 35329 San Diego Imperial Beach 1 Comment
  CAS-BOT-BC237984  Chloropyron maritimum subsp. maritimum Edgar A. Mearns 1894-7-15 3931 San Diego Vicinity of Monument 258P., Mex. bound line Comment
  CAS-BOT-BC237986  Chloropyron maritimum subsp. maritimum Lewis S. Rose 1935-7-12 35329 San Diego Imperial Beach 1 Comment
  CAS-BOT-BC372440  Chloropyron maritimum subsp. maritimum Edgar A. Mearns 1894-7-12 3914 San Diego Mouth of the Tia Juana River at Monument 258 Comment
  SD114044  Chloropyron maritimum subsp. maritimum Darley F. Howe 1935-7-7 285 San Diego Tia Juana Slough. Comment
  SD22014  Chloropyron maritimum subsp. maritimum Frank F. Gander 1938-7-25 6152 San Diego Near Boundary monument, No. 258 Comment
  SD39542  Chloropyron maritimum subsp. maritimum Edith A. Purer 1938-10-28 7887 San Diego Upper edge of salt marsh, Imperial Beach Comment
  SD85526  Chloropyron maritimum subsp. maritimum R. Mitchel Beauchamp 1971-5-1 2306 San Diego Low area of marsh,Tijuana Slough. (IPB 10/06) Comment
  SD93915  Chloropyron maritimum subsp. maritimum Ann Johnson, John Rutherford 1973-6-18 1084 San Diego Tijuana Slough Comment
  CAS-BOT-BC191261  Chorizanthe fimbriata var. fimbriata Alice Eastwood 1913-4-24 2916 San Diego Tia Juana [Tijuana] Comment
  RSA696082  Chorizanthe fimbriata var. fimbriata Jon P. Rebman, K. Rich, B. Laurie, Oscar Solis, John K. 2000-5-26 6710 San Diego Moody Canyon area, just E of San Ysidro Jr. High School. 90 Comment
  SD154533  Chorizanthe fimbriata var. fimbriata Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6710 San Diego Moody Canyon area, just east of San Ysidro Jr. High School (IPB 3/06) 89 Comment
  SD192670  Chorizanthe fimbriata var. fimbriata Phillip Roullard 2006-6-6 127 San Diego Otay Mesa, Border Field State Park, Border Field Bluffs, Ao mi W of Hollister Street, 200 yds N of U.S. Mexico border on top of mesa 29 Comment
  UCR147156  Chorizanthe fimbriata var. fimbriata Jon P. Rebman, K. Rich, O. Solis, John Klavzar, Robert K. Lauri 2000-5-26 6710 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  SD15075  Chorizanthe procumbens Frank F. Gander 1936-4-28 1665 San Diego U.S. Boundary Monument 258 (IPB 3/06) Comment
  CLARK-A1045-1322  Chrysanthemum coronarium George K. Helmkamp 1977-10-15 San Diego Imperial Beach dry base of Tijuana River at 19th Street; Imperial Beach 7.5'Q Comment
  SD219580  Cistanthe maritima Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22517 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; east-facing lower slope of Bunker Hill 85 Comment
  SD113948  Clarkia epilobioides Darley F. Howe 1937-5-2 502 San Diego Hillside on so. Side of Tia Juana Valley, about one mile from ocean. Comment
  UC930795  Clarkia epilobioides Alice Eastwood 1913-4-24 2929 San Diego Tia Juana Comment
  CAS-BOT-BC164946  Clarkia rhomboidea Alice Eastwood 1913-4-24 2928 San Diego Tia Juana Comment
  CAS-BOT-BC165234  Clarkia similis Alice Eastwood 1913-4-24 2929 San Diego Tia Juana Comment
  SD219581  Claytonia parviflora subsp. parviflora Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22501 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; north-facing slope near top of Bunker Hill 105 Comment
  SD219582  Claytonia perfoliata subsp. mexicana Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22495 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; north-facing slope near top of Bunker Hill 105 Comment
  SD219583  Claytonia perfoliata subsp. perfoliata Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22498 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; north-facing slope near top of Bunker Hill 105 Comment
  SD201116  Clematis ligusticifolia Darley Howe 1935-8-4 291 San Diego Lower Tijuana Valley Comment
  SDSU9961  Clematis ligusticifolia unknown 1931-7-1 San Diego Tia Juana River Estuary. Comment
  CAS-BOT-BC92833  Clematis pauciflora Alice Eastwood 1913-4-24 s.n. San Diego Tia Juana. Comment
  RSA534198  Clematis pauciflora R. M. Beauchamp 1971-5-2 2327 San Diego Tijuana River valley 22 Comment
  RSA696083  Clematis pauciflora Jon P. Rebman, K. Rich, B. Laurie, Oscar Solis, John K. 2000-5-26 6715 San Diego Moody Canyon area, just E of San Ysidro Jr. High School. 90 Comment
  SD134203  Clematis pauciflora R. Mitchel Beauchamp 1971-5-2 2327 San Diego Tijuana River valley, bluffs south of estuary. Mesa top. (IPB 4/06) 21 Comment
  SD154524  Clematis pauciflora Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6715 San Diego Moody Canyon area, just east of San Ysidro Jr. High School (IPB 4/06) 89 Comment
  SD203622  Clematis pauciflora Kim Marsden, Cindy Burrascano 2003-3-15 174 San Diego San Diego, Borderfield State Park, Lichty Mesa, 0.33 mi E of beach, 30 yds N of US/Mexico border 24 Comment
  SD206200  Clematis pauciflora Phillip Roullard 2008-3-14 189 San Diego Border Field State Park, South Mesa, flat area just north of US/Mexico Border fence, 1 mi E of Pacific Ocean and about .1 mi NW of Border Monument #257 27 Comment
  SD206201  Clematis pauciflora Phillip Roullard 2008-3-21 203 San Diego Border Field State Park, on top of Lichty Mesa, the mesa just to the east of Monument mesa, next to the border fence, in amidst the Agave shawii, about 1/2 mile east or the beach 18 Comment
  UC1593845  Clematis pauciflora R. Mitchel Beauchamp 1971-5-2 2327 San Diego bluffs s. of estuary Tijuana R. valley 22 Comment
  UCR147153  Clematis pauciflora Jon P. Rebman, K. Rich, O. Solis, John Klavzar, Robert K. Lauri 2000-5-26 6715 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  UCR73633  Clematis pauciflora R. M. Beauchamp 1971-5-2 2327 San Diego Tijuana River Valley, bluffs south of estuary 22 Comment
  RSA1310  Cleome isomeris E. R. Johnson 1928-6-11 990 San Diego Near national Monument, sw corner of U.S. 0 Comment
  RSA43743  Cleome isomeris E. B. Higgins 1949-3-1 s.n. San Diego Near Initial Monument. Comment
  CAS-BOT-BC180974  Cneoridium dumosum S. B. Parish; W. F. Parish 1882-6-1 725 San Diego Palm City Comment
  CDA35207  Cneoridium dumosum A. C. Browne 1953-8-24 s.n. San Diego Spooner Ranch, Tijuana Valley. 0 Comment
  RSA231206  Cneoridium dumosum Reid V. Moran 1970-2-7 16720 San Diego North end of Tijuana Hills, 3 miles west of San Ysidro. 75 Comment
  RSA252255  Cneoridium dumosum Gary D. Wallace 1975-1-11 1385 San Diego N. end Tijuana Hills, W of San Ysidro, off Monument Rd. 0.5 mi. W of jct. of Dairy Mart Rd. 46 Comment
  SD13033  Cneoridium dumosum Frank F. Gander 1936-1-10 402 San Diego 1 mi. west of Monument School Comment
  SD170523  Cneoridium dumosum Phillip Roullard 2004-12-17 8 San Diego Border Field Bluffs, S of city of Imperial Beach. 1 mi E of intersection of Monumen Rd and Hollister St. Plant is on south side of Vista del estero road up the slope 15 feet. 49 Comment
  SD79415  Cneoridium dumosum Reid Moran 1970-2-7 16720 San Diego Fairly common in chaparral, north end of Tijuana Hills, 3 miles west of San Ysidro. 74 Comment
  SD79860  Cneoridium dumosum Helen V. Witham 1971-2-21 1206 San Diego Occasional, Spooner Mesa, south of Tijuana River. 99 Comment
  SD128782  Collinsia heterophylla Geoffrey A. Levin, Melanie Howe 1990-4-9 2056 San Diego Small canyon. off Goat Canyon, west end of Spooners Mesa (IPB 10/06) 74 Comment
  SD15057  Collinsia heterophylla Frank F. Gander 1936-4-28 1647 San Diego Near Monument School Comment
  SD203679  Collinsia heterophylla Phillip Roullard 2008-3-14 194 San Diego Border Field State Park, at the eastern base of Bunker Hill, south of city of Imperial Beach. South Mesa, flat area just north of US/Mexico Border fence, 1 mi E of Pacific Ocean and about .1 mi NW of Border Monument 257 70 Comment
  SD262918  Collinsia heterophylla Susan T Welker 1998-4-9 San Diego Bluff and mesa south side of Tijuana River Valley (Spooner's Mesa), adjacent to dirt road leading from Monument Road to top of mesa. 47 Comment
  SD85568  Collinsia heterophylla R. Mitchel Beauchamp 1971-5-2 2320 San Diego Grassy slope, south of Tijuana Valley. 21 Comment
  UCR202780  Collinsia heterophylla Phillip Roullard 2008-3-14 194 San Diego South Coast, Border Field State Park, at the eastern base of Bunker Hill, south of city of Imperial Beach. South Mesa, flat area just north of US/Mexico Border fence, 1.0 mi east of Pacific Ocean and 0.1 mi northwest of Border Monument 257. Square W10 70 Comment
  SD211946  Conium maculatum Phillip Roullard 2008-4-11 188 San Diego Border Field State Park, S of city of Imperial Beach. 0.2 mi north of US/Mexico border fence, 1.3 mi E of Pacific Ocean, SW of Goat Canyon. 13 Comment
  UCR212543  Conium maculatum Phillip Roullard 2008-4-11 188 San Diego South Coast, Border Field State Park, south of city of Imperial Beach, 0.2 mi north of Us/MEX border fence, 1.3 mi east of Pacific Ocean, southwest of Goat Canyon. Square: W10 13 Comment
  SD113568  Convolvulus arvensis Darley F. Howe 1935-7-28 273 San Diego Otay Comment
  CLARK-A1528-1237  Cordylanthus maritimus John C. Roos 1937-6-13 1479 San Diego Imperial Beach 6 Comment
  GH365633  Cordylanthus maritimus L. S. Rose 1935-7-12 35329 Unknown Imperial Beach 1 Comment
  JEPS66301  Cordylanthus maritimus subsp. maritimus L. R. Heckard 1971-5-23 2565 San Diego just n of north estuary slough of Tijuana River Comment
  JEPS78995  Cordylanthus maritimus subsp. maritimus R. Mitchel Beauchamp 1971-5-1 2306 San Diego low area of marsh in Tijuana Slough Comment
  NY28951  Cordylanthus maritimus subsp. maritimus L. S. Rose 1935-7-12 35329 San Diego Imperial Beach 1.5 Comment
  POM223413  Cordylanthus maritimus subsp. maritimus L. S. Rose 1935-7-12 35329 San Diego Imperial Beach 2 Comment
  POM322960  Cordylanthus maritimus subsp. maritimus R. M. Beauchamp 1971-5-1 2306 San Diego Tijuana Slough. Comment
  RSA412319  Cordylanthus maritimus subsp. maritimus E. A. Purer 1938-10-28 7887 San Diego Imperial Beach Comment
  SBBG105329  Cordylanthus maritimus subsp. maritimus H. L. Ferguson 1979-5-17 1 San Diego Tijuana Marsh, Imperial Beach 1 Comment
  SBBG106111  Cordylanthus maritimus subsp. maritimus J. Newman -Jul-1981 San Diego Tijuana Marsh Comment
  SBBG80912  Cordylanthus maritimus subsp. maritimus F. F. Gander 1938-6-15 5997 San Diego Imperial Beach 5 Comment
  UCR116389  Cordylanthus orcuttianus Robert Noll 2000-7-5 s.n. San Diego South Coastal Plains region, Border Field State Park, bluff overlooking quarry (in bottom of Goat Canyon) 91 Comment
  SEINET807439  Coreopsis maritima G. K. Helmkamp, E. A. Helmkamp 1999-1 4630 Unknown Chula Vista: Border State Park near the Pacific Ocean and Mexico. 6 Comment
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Dec 4 2015
  UCR130669  Coreopsis maritima George K. Helmkamp, E. A. Helmkamp 1999-2-26 4630 San Diego Chula Vista, Border State Park near the Pacific Ocean & Mexico. 6 Comment
  UCR67710  Coreopsis maritima G. A. Levin, Melanie Howe 1990-4-9 2054 San Diego Peninsular Ranges; Coastal Foothills region, Small canyon off Goat Canyon, W end of Spooner's Mesa 23 Comment
  SD112673  Corethrogyne filaginifolia var. filaginifolia Darley F. Howe 1938-8-14 712 San Diego Mesa south of lower Tia Juana Valley. Comment
  SD13211  Corethrogyne filaginifolia var. filaginifolia Frank F. Gander 1936-1-28 492 San Diego Shore of Pacific, near Boundary Monument 258. Comment
  SD219411  Coronopus didymus Jon P. Rebman, W. Schmidtmann and J. Rocks 2012-2-17 22536 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; north of the USA/Mexico border fence; lower north-facing slope of Bunker Hill near dirt road and canyon bottom 20 Comment
  SD242435  Cotula australis Phillip Roullard, Chris Peregrin 2010-3-15 301 San Diego Border Field State Park; 1.4 mile WSW of intersection Hollister Road and Monument Road; 150 yards N of the border; West Side of Bunker Hill 70 Comment
  SD170875  Cotula coronopifolia Phillip Roullard 2005-4-15 32 San Diego Border Field State Park, S of city of Imperial Beach. On road (East/West) paralleling US/Mexico border fence in between South Mesa and Lichty mesa. 4 Comment
  SD190913  Cotula coronopifolia Phillip Roullard 2006-5-31 121 San Diego Imperial Beach, Tijuana Slough National Wildlife Refuge, E of Tower Road, Rivermouth Trail, N of Tijuana River, along W end of Imperial Beach Naval Auxillary Landing Field, 2 Comment
  RSA799674  Crassula connata LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5909 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD13263  Cressa truxillensis Frank F. Gander 1936-1-28 516 San Diego San Diego, salt marsh 1 I(c) miles northeast of Monument 258. Comment
  SDSU5719  Cressa truxillensis J. E. Fitch 1940-12-17 6976 San Diego Tiajuana Estuary. Comment
  SD113569  Cressa truxillensis var. vallicola Darley F. Howe 1935-6-23 246 San Diego Tia Juana Valley near ocean. Comment
  SD85527  Cressa truxillensis var. vallicola R. Mitchel Beauchamp 1971-5-1 2305 San Diego Tijuana Slough Comment
  SD85528  Cressa truxillensis var. vallicola R. Mitchel Beauchamp 1971-5-1 2304 San Diego Tijuana Slough Comment
  RSA799710  Croton californicus LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5916 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD113779  Croton californicus Darley F. Howe 1935-6-2 248 San Diego Lower Tia Juana Valley Comment
  SD13215  Croton californicus Frank F. Gander 1936-1-28 502 San Diego shore of the Pacific near boundary monument 258 Comment
  SD13234  Croton californicus Frank F. Gander 1936-1-28 501 San Diego shore of the Pacific near boundary monument 258 Comment
  SD83482  Croton californicus R. Mitchel Beauchamp, R. C. Pierce 1970-12-5 1397 San Diego Tijuana River Valley 4 Comment
  SDSU3709  Croton californicus unknown 1931-7-1 San Diego Tiajuana River Estuary. Comment
  UC153538  Croton californicus LeRoy Abrams 1903-5-15 3504 San Diego Tia Juana Tia Juana River Comment
  POM156772  Croton californicus var. tenuis L. R. Abrams 1903-5-15 3504 San Diego Tia Juana river. Tia Juana. [San Ysidro?] Comment
  POM2786  Croton californicus var. tenuis L. R. Abrams 1903-5-15 8583 San Diego Tia Juana river. Tia Juana. [San Ysidro?] Comment
  SD113866  Croton setiger Darley F. Howe 1935-7-7 258 San Diego Otay Comment
  SBBG50360  Cryptantha intermedia R. M. Beauchamp 1971-2-21 1642 San Diego Spooner's Mesa near InterNat Border 125 Comment
  SD15077  Cryptantha intermedia Frank F. Gander 1936-4-28 1667 San Diego U.S.Boundary Monument 258 Comment
  SD174382  Cryptantha intermedia Phillip Roullard 2005-3-11 18 San Diego Border Field State Park, S of city of Imperial Beach. South Mesa flat area just northwest of US/Mexico border fence. 29 Comment
  SD219390  Cryptantha intermedia Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22518 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; east-facing lower slope of Bunker Hill 85 Comment
  SD83551  Cryptantha intermedia R. Mitchel Beauchamp 1971-2-21 1642 San Diego Spooner's Mesa, near International Border 124 Comment
  RSA799671  Cryptantha intermedia var. intermedia LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5921 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SEINET8513182 Image available Cryptomeria japonica Elinor Lehto 1969-5-31 15994 San Diego Imperial Beach, Bob's Nursery Comment
  SD113648  Cuscuta californica var. californica Darley F. Howe 1935-6-2 245 San Diego Near ocean, mouth of Tia Juana Valley. Comment
  SD221627  Cuscuta californica var. californica Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22521 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  SD193760  Cuscuta pacifica var. pacifica Phillip Roullard 2006-5-3 106 San Diego Imperial Beach, Tijuana Slough National Wildlife Refuge, W of 5th Street, I(c) E of Seacoast Drive, N of Tijuana River, along W end of Imperial Beach Naval Auxillary Landing Field, 2 Comment
  SD255004  Cuscuta pacifica var. pacifica Susan T Welker 1995-6-8 San Diego Mowed field near old model plane airstrip, north of Monument Rd, east of Goat Canyon. Tijuana River Valley. South of city of San Diego. 3 Comment
  CAS-BOT-BC6963  Cylindropuntia californica var. californica LeRoy Abrams 1903-5-14 3474 San Diego Field redacted by CAS, contact the data manager for more information Comment
  SD13296  Cylindropuntia californica var. californica Frank F. Gander 1936-1-28 487 San Diego Near Border Monument 258, on shore of Pacific Ocean. (IPB 7/07) Comment
  SD84080  Cylindropuntia californica var. californica George E. Lindsay 1961-4-16 3108 San Diego Hills just north of San Ysidro. (IPB 7/07) Comment
  UCR50595  Cylindropuntia californica var. californica A. C. Sanders, B. G. Pitzer, Steve Morgan 1987-5-14 7099 San Diego Otay Mesa area, E edge of San Ysidro at foot of mesa, just east of Beyer Street School Comment
  SD13295  Cylindropuntia prolifera Frank F. Gander 1936-1-28 486 San Diego Near Border Monument 258, shore of Pacific. (IPB 7/07) Comment
  SD170852  Cylindropuntia prolifera Phillip Roullard 2005-6-10 73 San Diego Tijuana Slough National Wildlife Refuge, Rivermouth trail. 0.1 mi SW of trailhead at intersection of 5th St and Iris Ave, along the NW boundary of the Imperial Beach Naval Air Station. 3 Comment
  UCR26835  Cylindropuntia prolifera A. C. Sanders 1982-6-6 2708 San Diego South Coast, Imperial Beach. S end San Diego Bay near end of 13th St. Comment
  UCR50596  Cylindropuntia prolifera A. C. Sanders, B. G. Pitzer, S. Morgan 1987-5-14 7100 San Diego Otay Mesa area, E edge of San Ysidro at foot of mesa, just east of Beyer Street School Comment
  SD112833  Cynodon dactylon Darley F. Howe 1935-6-23 262 San Diego Cultivated ground, Otay. Comment
  SD196023  Cyperus eragrostis Phillip Roullard 2006-6-7 126 San Diego Imperial Beach, Tijuana Slough National Wildlife Refuge, E of Tower Road, Rivermouth Trail, N of Tijuana River, along W end of Imperial Beach Naval Auxillary Landing Field, 2 Comment
  UCR18315  Cyperus erythrorhizos A. C. Sanders 1979-10-19 00837 San Diego Tijuana River Valley in the city of Imperial Beach. River bank where it crosses Hollister Street 8 Comment
  CAS-BOT-BC114290  Cyperus esculentus R. D. Alderson 1895-6-12 961 San Diego Tia Juana Valley. Comment
  UCR18308  Cyperus esculentus A. C. Sanders 1979-10-19 0838 San Diego Tijuana River Valley in the city of Imperial Beach. River bank where it crosses Hollister Street 8 Comment
  SD228998 Image available Datura stramonium Phillip Roullard 2011-9-1 342 San Diego Border Field State Park; 1.65 mile WSW of intersection Hollister Road and Monument Road; 550 yards N of the border EPA restoration site between the sediment basins on the East and Monument Rd. 3 Comment
  SD174053  Datura wrightii Phillip Roullard 2005-5-27 54 San Diego South of the city of Imperial Beach, NE of Goat Canyon, on S side of Monument Rd, a mile and 1/8 from interesection with Hollister St. 4 Comment
  SD83579  Datura wrightii R. Mitchel Beauchamp 1970-12-6 1469 San Diego Riverbed, Tijuana River Valley. 4 Comment
  SD171126  Daucus pusillus Phillip Roullard 2005-4-15 29 San Diego Border Field State Park, S of city of Imperial Beach. South Mesa, flat area just northwest of US/Mexico Border fence, 1 mi E of Pacific Ocean. 14 Comment
  SD157872  Deinandra conjugens Matt Guillams 2004-7-15 San Diego San Diego: ca. 500 m. southeast of the intersection of Highway 805 and the Otay River. Comment
  CAS-BOT-BC293861  Deinandra fasciculata LeRoy Abrams 1903-5-16 3518 San Diego Tia Juana Comment
  CAS-BOT-BC293866  Deinandra fasciculata LeRoy Abrams 1903-5-16 3518 San Diego At Tia Juana Comment
  JEPS73721  Deinandra fasciculata L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1968-7-15 2041 San Diego w of San Ysidro (at the U.S.-Mexican boundary monument) Comment
  RSA696080  Deinandra fasciculata J. P. Rebman, K. Rich, B. Laurie, Oscar Solis 2000-5-26 6709 San Diego Moody Canyon area, just E of San Ysidro Jr. High School. 90 Comment
  SD112749  Deinandra fasciculata Darley F. Howe 1935-5-5 221 San Diego Otay Comment
  SD154618  Deinandra fasciculata Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6709 San Diego Moody Canyon area, just east of San Ysidro Jr. High School 89 Comment
  SD170870  Deinandra fasciculata Phillip Roullard 2005-5-6 42 San Diego Border Field State Park, S of city of Imperial Beach. South Mesa flat area just north of US/Mexico border fence, east side of the road. 14 Comment
  SD170871  Deinandra fasciculata Phillip Roullard 2005-6-3 58 San Diego Tijuana Slough National Wildlife Refuge. From Tijuana estuary visitor center parking lot, south on the McCoy trail 0.2 miles, 50 feet off the west side of the trail. 7 Comment
  SD192281  Deinandra fasciculata Phillip Roullard 2006-5-31 123 San Diego Imperial Beach, Tijuana Slough National Wildlife Refuge, E of Tower Road, Rivermouth Trail, N of Tijuana River, along W end of Imperial Beach Naval Auxillary Landing Field, 2 Comment
  UC407334  Deinandra fasciculata LeRoy Abrams 1903-5-16 3518 San Diego Tia Juana Comment
  RSA69049  Delphinium parryi F. W. Peirson 1923-3-27 3406 San Diego Low slope about saline flat, 1/4 mile from beach; Imperial Beach. Comment
  SD15049  Delphinium parryi Frank F. Gander 1936-4-28 1639 San Diego Otay Comment
  SD15064  Delphinium parryi Frank F. Gander 1936-4-28 1654 San Diego Near Monument School Comment
  SD85580  Delphinium parryi R. Mitchel Beauchamp 1971-5-2 2324 San Diego Grassy slope south of Tijuana Valley 22 Comment
  CAS-BOT-BC116409  Delphinium parryi subsp. parryi LeRoy Abrams 1903-5-15 3495 San Diego Hills at Tia Juana Comment
  SD236076  Delphinium parryi subsp. parryi Phillip Roullard 2008-4-11 214 San Diego Border Field State Park, at the eastern base of Bunker Hill, south of city of Imperial Beach. South Mesa, flat area just north of US/Mexico Border fence, 1 mi E of Pacific Ocean and about .1 mi NW of Border Monument 257 70 Comment
  SD219414  Descurainia pinnata subsp. brachycarpa Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22478 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  SD237731  Descurainia pinnata subsp. brachycarpa Phillip Roullard, Chris Peregrin 2010-3-15 284 San Diego Border Field State Park; 1.4 mile WSW of intersection Hollister Road and Monument Road; 150 yards N of the border; West Side of Bunker Hill 70 Comment
  SD237735  Descurainia pinnata subsp. brachycarpa Phillip Roullard 2008-2-29 172 San Diego Border Field State Park, Lichty Mesa, Mesa is the one just east of Monument Mesa, plant is located in a cluster of Agave shawii to the east side of the mesa about 1/2 mile east from beach 85 Comment
  SEINET8042775  Descurainia pinnata subsp. brachycarpa Phillip Roullard 2008-1 172 San Diego Border Field State Park, Lichty Mesa, Mesa is the one jsut east of Monument Mesa, plant is located in a cluster of Agave shawii to the east side of the mesa about 1/2 mile east from beach. 85 Comment
  SD15048  Dichelostemma capitatum subsp. capitatum Frank F. Gander 1936-4-28 1638 San Diego Otay Comment
  SD174558  Dichelostemma capitatum subsp. capitatum Phillip Roullard 2004-12-17 11 San Diego Border Field Bluffs, 0.6 mi SW of intersection of Monument Rd and 19th St, 0.4 mi N of US/Mexico border fence, NE of Goat Canyon. 56 Comment
  SD155217  Dichondra occidentalis Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6702 San Diego Moody Canyon area, just east of San Ysidro Jr. High School 89 Comment
  SD203386  Dichondra occidentalis Phillip Roullard 2008-2-29 167 San Diego Border Field State Park, on the western edge of the mesa adjacent to the border, about 1 mile east of Pacific Ocean and .25 mi north of US/Mexico border. 32 Comment
  UCR147162  Dichondra occidentalis Jon P. Rebman, K. Rich, O. Solis, John Klavzar, Robert K. Lauri 2000-5-26 6702 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  SD134375  Dicranostegia orcuttiana Craig Reiser 1988-9-10 San Diego Otay River, near Palm Avenue. Cobbly riverbed. (IPB 10/06) Comment
  SD152596  Dicranostegia orcuttiana Craig Reiser 2000-1 San Diego Otay River Valley, south side of valley ca. I(c) mile west of 805 Freeway, along trail. (IPB 10/06) Comment
  SD170498  Diplacus aurantiacus Phillip Roullard 2005-5-13 49 San Diego South of the city of Imperial Beach, E of Smuggler Gulch, on road just N of US/Mexico border fence, 0.4 mi SE of intersection of Hollister Rd and Monument Rd. 92 Comment
  CAS-BOT-BC152953  Diplacus brevipes Alice Eastwood 1913-4-24 2915 San Diego Tia Juana Comment
  SD22013  Distichlis littoralis Frank F. Gander 1938-7-25 6153 San Diego Near Boundary Monument No. 258 Comment
  SD79880  Distichlis littoralis Helen V. Witham 1970-10-12 1160 San Diego Common, 2 miles south of Third and Palm, Imperial Beach. 2 Comment
  CAS-BOT-BC195694  Distichlis spicata S. G. Stokes 1895-7-1 s.n. San Diego Tia Juana Comment
  SD193464  Distichlis spicata Phillip Roullard 2006-5-17 113 San Diego Imperial Beach, Tijuana Slough National Wildlife Refuge, E of Tower Road, Rivermouth Trail, N of Tijuana River, along W end of Imperial Beach Naval Auxillary Landing Field, 2 Comment
  SD83483  Distichlis spicata R. Mitchel Beauchamp, R. C. Pierce 1970-12-5 1403 San Diego Tijuana River Valley. 4 Comment
  CDA10213  Dittrichia graveolens P. Roullard 2007-10-26 159 San Diego Otay Mesa, Borderfield State Park, Goat Canyon, about 550 yards south of Monument Road and 3/4 mile southwest of intersection with Saturn Boulevard, near sedimentation basin. (32.5389 N, 117.1034 W) Comment
  SD196249  Dittrichia graveolens Phillip Roullard 2007-10-26 159 San Diego Otay Mesa, Borderfield State Park, Goat Canyon, about 550 yards S of Monument Road and A| mi SW of intersection with Saturn Blvd, near sedimentation basin 17 Comment
  SEINET3240423  Dittrichia graveolens Phillip Roulard 2007-1 159 San Diego Otay Mesa, Borderfield State Park, Goat Canyon, about 550 yards S of Monument Road and 3/4 mi SW of intersection with Saturn Blvd, near sedimentation basin. 17 Comment
  UCR203004  Dittrichia graveolens Phillip Roullard 2007-10-26 159 San Diego South Coast, Otay Mesa, Border Field State Park, Goat Canyon c. 550 yards south of Monument Road and 0.75 mi southwest of the intersection with Saturn Blvd, near sedimentation basin. Square W10 17 Comment
  UCR222053  Dittrichia graveolens Robert Noll 2010-11-10 s.n. San Diego South Coast, Border Fields State Park, north of the road to Tijuana Bull Ring and c. 100 m from Mexican border fence 1 Comment
  RSA70697  Dodecatheon clevelandii L. S. Rose 1950-2-25 s.n. San Diego Imperial Beach. Comment
  UCR16650  Dodecatheon clevelandii Robert M. Hasegawa 1976-4-17 s.n. San Diego Otay Mesa, 1.2 - 1.5 mi NE of Beyer Way along Otay Mesa Road 152 Comment
  SBBG80916  Dodecatheon clevelandii subsp. clevelandii F. F. Gander 1938-3-9 4959 San Diego Imperial Beach 3 Comment
  SD219587  Dodecatheon clevelandii subsp. clevelandii Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22504 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; north-facing slope near top of Bunker Hill 105 Comment
  SD203328  Draba cuneifolia Phillip Roullard 2008-2-29 179 San Diego Border Field State Park, south of city of Imperial Beach. South Mesa, flat area just northwest of US/Mexico Border fence, 1 mi E of Pacific Ocean 84 Comment
  CAS-BOT-BC109561  Dudleya attenuata Carl B. Wolf 1941-6-27 10910 San Diego Extreme southwest corner of U.S.A. about 500 feet north of initial boundary monument. Comment
  CAS-BOT-BC109562  Dudleya attenuata E. K. Balls 1949-6-12 13474 San Diego From southwest corner of the U.S., 55 feet north of Initial Boundary Monument. Comment
  CAS-BOT-BC109563  Dudleya attenuata Carl B. Wolf 1941-6-27 10910 San Diego Extreme southwest corner of U.S.A. about 500 feet north of initial boundary monument. Comment
  SD114462  Dudleya attenuata subsp. attenuata Darley F. Howe 1936-5-24 340 San Diego Beach near the international boundary. Comment
  SD18277 Image available Dudleya attenuata subsp. attenuata A. J. Stover 1937-7-5 San Diego International Boundary Monument #258. Comment
  JEPS57448  Dudleya attenuata subsp. orcuttii L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-7-15 2042 San Diego w San Ysidro (near U.S.-Mexican boundary monument) Comment
  RSA25616  Dudleya attenuata subsp. orcuttii C. B. Wolf 1941-6-27 10910 San Diego Extreme SW corner of the USA, about 500 ft. No. of initial Boundry Monument. 3 Comment
  UC774552  Dudleya attenuata subsp. orcuttii Carl B. Wolf 1941-6-27 10910 San Diego extreme sw corner of U.S.A. about 500 ft n of initial boundary monument 3 Comment
  SD219464  Dudleya blochmaniae subsp. blochmaniae Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22502 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; north-facing slope near top of Bunker Hill 105 Comment
  CAS-BOT-BC428270  Dudleya edulis Lewis S. Rose 1935-7-12 35332 San Diego Imperial Beach 0 Comment
  POM265682  Dudleya edulis J. C. Roos 1937-6-13 2234 San Diego Imperial Beach. Comment
  SD182113  Dudleya edulis Phillip Roullard 2005-6-10 66 San Diego Tijuana Slough National Wildlife Refuge, Rivermouth trail. 0.2 mi SW of trailhead at intersection of 5th St and Iris Ave, along the NW boundary of the Imperial Beach Naval Air Station. 3 Comment
  SD18278  Dudleya edulis A. J. Stover 1937-7-5 San Diego National Monument 258. Comment
  SD204241  Dudleya edulis Phillip Roullard 2006-5-31 122 San Diego Imperial Beach, Tijuana Slough National Wildlife Refuge, E of Tower Road, Rivermouth Trail, N of Tijuana River, along W end of Imperial Beach Naval Auxillary Landing Field, 2 Comment
  UCR30827  Dudleya edulis John C. Roos 1937-6-13 2234 San Diego Imperial Beach Comment
  CLARK-A1528-4866  Dudleya lanceolata John C. Roos 1937-6-13 1789 San Diego Imperial Beach Comment
  SD114460  Dudleya lanceolata Darley F. Howe 1940-4-21 988 San Diego Bluff ca. 1 mile from ocean on south side of Tia Juana Valley. Comment
  SD85830 Image available Dudleya lanceolata R. Mitchel Beauchamp 1971-5-2 2331 San Diego Slope south of Tijuana Valley. 22 Comment
  SD203419  Dudleya pulverulenta Phillip Roullard 2006-6-7 132 San Diego Otay Mesa, Border Field State Park, Border Field Bluffs, Ao mi W of Hollister Street, 200 yds N of U.S. Mexico border on top of mesa 29 Comment
  SD15957  Dudleya variegata Frank F. Gander 1936-4-28 1635 San Diego Otay Comment
  SD13031  Dysphania ambrosioides Frank F. Gander 1936-1-10 460 San Diego 1 mi. west of Monument School Comment
  SD83485 Image available Dysphania ambrosioides R. Mitchel Beauchamp, R. C. Pierce 1970-12-5 1405 San Diego Tijuana River Valley. 4 Comment
  CDA2663  Eichhornia crassipes J. Hohimer, W. S. Radcliffe, R. J. Buckner 1967-5-19 San Diego South of Monument Road, San Ysidro. 0 Comment
  CDA2664  Eichhornia crassipes T. C. Fuller 1967-9-28 16420 San Diego Just below the fence of the International Boundary, just south of Monument Road, 0.2 miles west of Dairy Mart Road, San Ysidro. 0 Comment
  RSA190699  Eichhornia crassipes T. C. Fuller 1967-9-28 16420 San Diego N facing slope just below the fence of the International Boundary, just S of Monument road, 0.2 miles W of Dairy Mart Raod, San Ysidro, San Diego County Comment
  UC1353970  Eichhornia crassipes T. C. Fuller 1967-9-28 16420 San Diego 0.2 mi w of Dairy Mart Road (just below fence of the International Boundary, just s of Monument Road); San Ysidro Comment
  UCD139985  Eichhornia crassipes T. C. Fuller 1967-9-28 16420 San Diego north facing slope just below the fence of the International Boundary, just south of Monument Road, 0.2 mile west of Dairy Mart Road. San Ysidro. Comment
  UCD139986  Eichhornia crassipes T. C. Fuller 1967-9-28 16420 San Diego north facing slope just below the fence of the International Boundary, just south of Monument Road, 0.2 mile west of Dairy Mart Road. San Ysidro. Comment
  RSA799700  Emex spinosa LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5899 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SDSU2089  Emex spinosa T. A. Rowden 1987-4-17 San Diego Dunes 200 m. north of Carnation Ave., Imperial Beach. Comment
  POM156439  Emmenanthe penduliflora L. R. Abrams 1903-5-14 3494 San Diego Hills at Tia Juana, U.S. side of line. Comment
  RSA696076  Emmenanthe penduliflora Jon P. Rebman, K. Rich, B. Laurie, Oscar Solis, John K. 2000-5-26 6703 San Diego Moody Canyon area, just E of San Ysidro Jr. High School. 90 Comment
  SD155172  Emmenanthe penduliflora Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6703 San Diego Moody Canyon area, just east of San Ysidro Jr. High School 89 Comment
  UCR147161  Emmenanthe penduliflora Jon P. Rebman, K. Rich, O. Solis, John Klavzar, Robert K. Lauri 2000-5-26 6703 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  CAS-BOT-BC131243  Encelia californica LeRoy Abrams 1903-5-14 3479 San Diego Hillsides at Tia Juana Comment
  GH414430  Encelia californica G. C. Deane 1883-2-24 Unknown Seashore, 100 ft. from Lower Cal. Comment
  RSA799784  Encelia californica LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5931 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD170867  Encelia californica Phillip Roullard 2004-12-17 6 San Diego Border Field Bluffs, S of city of Imperial Beach. 1 mi E of intersection of Monumen Rd and Hollister St. Plant is on south side of Vista del estero road up the slope 15 feet. 0 Comment
  SD190918  Encelia californica Phillip Roullard 2006-2-25 95 San Diego Imperial Beach, Border Field State Park, on beach, I(c) mi W of Monument Road, Ao N of U.S. and Mexico border 3 Comment
  SD45799  Encelia californica Charles F. Harbison 1955-3-10 San Diego International Monument 258. Comment
  UCR249224  Encelia californica LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5931 San Diego Coastal Plains and Basins; South Coastal Plain Region, Lichty Mesa, Borderfield State Park 20 Comment
  CAS-BOT-BC81633  Ephedra californica Alice Eastwood 1913-4-24 2911 San Diego Tia Juana Comment
  CAS-BOT-BC81645  Ephedra californica Edgar A. Mearns 1894-7-15 3923 San Diego Vicinity of Monument 258 P. Comment
  CAS-BOT-BC81651  Ephedra californica LeRoy Abrams 1903-5-14 3489 San Diego Tia Juana Comment
  NY70066  Ephedra californica L. Abrams 1903-5-14 3489 San Diego Tia Juana [Tijuana] Comment
  POM156436  Ephedra californica L. R. Abrams 1903-5-14 3489 San Diego Hills at Tia Juana, U.S. side of line. Comment
  SD112326  Ephedra californica Darley F. Howe 1938-3-27 598 San Diego Mesa above Tia Juana on the U. S. side. (IPB 5/07) Comment
  SD112336  Ephedra californica Darley F. Howe 1935-6-23 671 San Diego By the sand dunes at the mouth of the Tia Juana Valley. (IPB 5/07) Comment
  SD13245  Ephedra californica Frank F. Gander 1936-1-28 509 San Diego On beach, near monument 258 (IPB 4/07) Comment
  POM32832  Epilobium canum subsp. canum Unspecified s.n. San Diego Otay. Comment
  SD113055  Erigeron bonariensis Darley F. Howe 1935-7-7 289 San Diego Otay Comment
  SD219301  Erigeron bonariensis Jon P. Rebman, W. Schmidtmann and J. Rocks 2012-2-17 22534 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; north of the USA/Mexico border fence; lower north-facing slope of Bunker Hill near dirt road and canyon bottom 20 Comment
  SD190908  Erigeron canadensis Phillip Roullard 2006-10-6 136 San Diego Otay Mesa, Border Field State Park, along Monument Road, 1I(c) mi W of junction with Hollister Street, I(c) mi N of U.S. Mexico border 4 Comment
  CAS-BOT-BC296803  Erigeron divergens S. G. Stokes 1895-7-1 s.n. San Diego Tia Juana Comment
  UC485107  Erigeron divergens S. G. Stokes San Diego Tia Juana River bed Comment
  GH364073  Eriogonum fasciculatum S. G. Stokes 1933-6-18 54 Unknown Sand dunes at Point of Rocs south of San Diego Comment
  LA206766  Eriogonum fasciculatum Susan G. Stokes; 1933-6-18 54 San Diego San Joaquin Valley, Point of Rocks, S of San Diego Comment
  POM209428  Eriogonum fasciculatum S. G. Stokes 1933-6-18 54 San Diego Near Point of Rocks, south of San Diego Comment
  SDSU4968  Eriogonum fasciculatum unknown 1931-7-1 San Diego Tijuana River Estuary. Comment
  CAS-BOT-BC249886  Eriogonum fasciculatum var. fasciculatum Susan G. Stokes 1933-6-18 54 San Diego At Point of Rocks, south of San Diego Comment
  CAS-BOT-BC249888  Eriogonum fasciculatum var. fasciculatum Edgar A. Mearns No date on label 3928 San Diego Vicinity of Monument 258P, Mex. bound line Comment
  CAS-BOT-BC249889  Eriogonum fasciculatum var. fasciculatum LeRoy Abrams 1903-5-15 3519 San Diego Tia Juana Comment
  CAS-BOT-BC253231  Eriogonum fasciculatum var. fasciculatum Susan G. Stokes 1933-6-18 54 San Diego Sand dunes at Point of Rocks, south of San Diego Comment
  SD13216  Eriogonum fasciculatum var. fasciculatum Frank F. Gander 1936-1-28 507 San Diego On beach near Boundary Monument #258 Comment
  SD170603  Eriogonum fasciculatum var. fasciculatum Phillip Roullard 2004-12-17 9 San Diego Border Field Bluffs, S of city of Imperial Beach. 1 mi E of intersection of Monumen Rd and Hollister St. Plant is on south side of Vista del estero road up the slope 15 feet. 14 Comment
  SD83480  Eriogonum fasciculatum var. fasciculatum R. Mitchel Beauchamp, R. C. Pierce 1970-12-5 1396 San Diego Common in sandy areas, Tijuana River Valley. 4 Comment
  UC534950  Eriogonum fasciculatum var. fasciculatum Susan G. Stokes 1933-6-18 54 San Diego s San Diego (sand dunes at Point of Rocks; edge of beach near Border Monument) Comment
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Jul 5 2016
  SD170602  Eriogonum fasciculatum var. foliolosum Phillip Roullard 2005-6-3 60 San Diego Tijuana Slough National Wildlife Refuge. From Tijuana estuary visitor center parking lot, south on the McCoy trail 0.25 miles, 60' off the trail to the west. 4 Comment
  SD192689  Eriogonum parvifolium Phillip Roullard 2006-2-25 94 San Diego Imperial Beach, Border Field State Park, on beach, I(c) mi W of Monument Road, Ao N of U.S. and Mexico border 3 Comment
  CAS-BOT-BC262914  Eriogonum thurberi Alice Eastwood 1913-4-24 2913 San Diego Tia Juana Comment
  CAS-BOT-BC297403  Eriophyllum confertiflorum Alice Eastwood 1913-4-24 2905 San Diego Tia Juana Comment
  CAS-BOT-BC297423  Eriophyllum confertiflorum LeRoy Abrams 1903-5-14 3483 San Diego Tia Juana Comment
  CAS-BOT-BC304030  Eriophyllum confertiflorum S. G. Stokes 1895-6-29 s.n. San Diego Tia Juana Comment
  POM156396  Eriophyllum confertiflorum L. R. Abrams 1903-5-14 3483 San Diego Hills at Tia Juana, U.S. side of line. Comment
  RSA689503  Eriophyllum confertiflorum var. confertiflorum J. P. Rebman, K. Rich, B. Laurie, Oscar Solis 2000-5-26 6724 San Diego Moody Canyon area, just E of San Ysidro Jr. High School. 90 Comment
  SD154611  Eriophyllum confertiflorum var. confertiflorum Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6724 San Diego Moody Canyon area, just east of San Ysidro Jr. High School 89 Comment
  SD219317  Eriophyllum confertiflorum var. confertiflorum Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22497 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; north-facing slope near top of Bunker Hill 105 Comment
  SD242451  Eriophyllum confertiflorum var. confertiflorum Phillip Roullard, Jon Rebman 2009-4-18 241 San Diego Border Field State Park; Imperial Beach; W side of Bunker Hill near border; 1.34 miles SW of intersection Hollister Road and Monument Road 82 Comment
  UC1787370  Eriophyllum confertiflorum var. confertiflorum Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6724 San Diego Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  UCR147146  Eriophyllum confertiflorum var. confertiflorum Jon P. Rebman, Et al. 2000-5-26 6724 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  SD219509  Erodium botrys Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22483 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  SD247915  Erodium botrys Phillip Roullard, Jon Rebman 2009-4-18 263 San Diego Border Field State Park; Imperial Beach; 1.2 miles WSW of intersection Hollister Road and Monument Road near sedimentation basin, W of Spooner's mesa 10 Comment
  SD247920  Erodium brachycarpum Phillip Roullard, Chris Peregrin 2010-3-17 307 San Diego Border Field State Park; 1.4 mile WSW of intersection Hollister Road and Monument Road; 150 yards N of the border; West Side of Bunker Hill 70 Comment
  RSA799670  Erodium cicutarium LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5920 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD219511  Erodium cicutarium Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22482 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  SD247924  Erodium cicutarium Phillip Roullard, Jon Rebman 2009-4-18 247 San Diego Border Field State Park; Imperial Beach; W side of Bunker Hill near border; 1.34 miles SW of intersection Hollister Road and Monument Road 82 Comment
  SD219516  Erodium moschatum Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22485 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  SD7072  Erythranthe floribunda Charles R. Orcutt 1884-5-13 San Diego Otay Comment
  CAS-BOT-BC403426  Eschscholzia californica Alice Eastwood 1913-4-24 2907 San Diego Tia Juana Comment
  SD174209  Eschscholzia californica Phillip Roullard 2005-4-15 24 San Diego Border Field State Park, S of city of Imperial Beach. Lichty Mesa, adjacent (north) to US/Mexico Border fence. 14 Comment
  SD196570  Eschscholzia californica Kim Marsden, Cindy Burrascano 2003-3-15 168 San Diego San Diego, Borderfield State Park, Lichty Mesa, 0.33 mi E of beach, 30 yds N of US/Mexico border 24 Comment
  UC855154  Eschscholzia californica Alice Eastwood 1913-4-24 2907 San Diego Tia Juana Comment
  UCR202999  Eschscholzia californica Kim Marsden, Cindy Burrascano 2003-3-15 168 San Diego South Coast, Borderfield State Park, Lichty Mesa, 0.33 mi east of beach, 30 yards north of US/MEX border. Square; W10 24 Comment
  SD15066  Eschscholzia californica var. peninsularis Frank F. Gander 1936-4-28 1656 San Diego U.S. Boundary Monument #258 Comment
  OBI76906  Eucalyptus camaldulensis Jon P. Rebman, W. Schmidtmann and J. Rocks 2012-2-17 22537 San Diego Voucher for San Diego Plant Atlas. Border Field State Park: W of San Ysidro border crossing; S of Monument Rd; N of the USA/Mexico border fence; lower N facing slope of Bunker Hill near dirt rd and cyn bottom 20 Comment
  SD174230  Eucalyptus camaldulensis Phillip Roullard 2005-6-24 85 San Diego South of the city of Imperial Beach. 1.2 mi W on Monument Rd from interesection with Hollister St., just before the Border Field Park entrance. Trees located on S side of road. 3 Comment
  SD219539  Eucalyptus camaldulensis Jon P. Rebman, W. Schmidtmann and J. Rocks 2012-2-17 22537 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; north of the USA/Mexico border fence; lower north-facing slope of Bunker Hill near dirt road and canyon bottom 20 Comment
  OBI76905  Eucalyptus globulus Jon P. Rebman, W. Schmidtmann and J. Rocks 2012-2-17 22538 San Diego Voucher for San Diego Plant Atlas. Border Field State Park: W of San Ysidro border crossing; S of Monument Rd; N of the USA/Mexico border fence; lower N facing slope of Bunker Hill near dirt rd and cyn bottom 20 Comment
  SD219540  Eucalyptus globulus Jon P. Rebman, W. Schmidtmann and J. Rocks 2012-2-17 22538 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; north of the USA/Mexico border fence; lower north-facing slope of Bunker Hill near dirt road and canyon bottom 20 Comment
  UCR239413  Eucalyptus globulus Jon P. Rebman, Warren Schmidtmann, Jim Rocks 2012-2-17 22538 San Diego Border Field State Park, west of San Ysidro border crossing, south of Monument Road, north of the US/Mexico border fence, lower north-facing slope of Bunker Hill near dirt road and canyon bottom. Square W10 20 Comment
  HSC86919  Eucalyptus tereticornis Dave Goodward 1987-4-16 3 San Diego In Miramar, N of San Diego, Pomerado Rd. in Carrol Canyon, ca. 1.5 mi. E of I-15. 152 Comment
  RSA689501  Eucrypta chrysanthemifolia var. chrysanthemifolia Jon P. Rebman, K. Rich, B. Laurie, Oscar Solis, John K. 2000-5-26 6721 San Diego Moody Canyon area, just E of San Ysidro Jr. High School. 90 Comment
  SD154559  Eucrypta chrysanthemifolia var. chrysanthemifolia Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6721 San Diego Moody Canyon area, just east of San Ysidro Jr. High School 89 Comment
  SD219517  Eucrypta chrysanthemifolia var. chrysanthemifolia Jon P. Rebman, W. Schmidtmann and J. Rocks 2012-2-17 22545 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; north of the USA/Mexico border fence; lower north-facing slope of Bunker Hill near dirt road and canyon bottom 20 Comment
  SD262499  Eucrypta chrysanthemifolia var. chrysanthemifolia Phillip Roullard, Jon Rebman 2009-4-18 243 San Diego Border Field State Park; Imperial Beach; W side of Bunker Hill near border; 1.34 miles SW of intersection Hollister Road and Monument Road 82 Comment
  SD262500  Eucrypta chrysanthemifolia var. chrysanthemifolia Phillip Roullard 2010-4-1 269 San Diego Border Field State Park; W of the base of Bunker Hill; 1 mile WSW of intersection Hollister Road and Monument Road; 250 yards N of the border 6 Comment
  UCR147148  Eucrypta chrysanthemifolia var. chrysanthemifolia Jon P. Rebman, Et al. 2000-5-26 6721 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  SD128780  Euphorbia misera Geoffrey A. Levin, Melanie Howe 1990-4-9 2057 San Diego Small cyn. off Goat Cyn., W end of Spooners Mesa 74 Comment
  SD170805  Euphorbia misera Phillip Roullard 2004-12-17 12 San Diego Border Field Bluffs, 0.6 mi SW of intersection of Monument Rd and 19th St, 0.4 mi N of US/Mexico border fence, NE of Goat Canyon. 56 Comment
  SD79872 Image available Euphorbia misera Helen V. Witham 1971-2-21 1208 San Diego Occasional, south edge of mesa, Spooner Mesa, south of Tijuana River. 99 Comment
  SD83629  Euphorbia misera R. Mitchel Beauchamp 1971-2-21 1640 San Diego On exposed slopes, Spooner's Mesa, near International Border. 124 Comment
  UCD142435  Euphorbia misera Geoffrey A. Levin; Melanie Howe 1990-4-9 2057 San Diego Goat Canyon, west end of Spooner's Mesa. 75 Comment
  SD15067  Euphorbia polycarpa var. polycarpa Frank F. Gander 1936-4-28 1657 San Diego U. S. Boundary Monument 258 Comment
  POM156440  Euphorbia spathulata L. R. Abrams 1903-5-15 3496 San Diego Hills at Tia Juana. Comment
  SD154573  Euphorbia spathulata Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6711 San Diego Moody Canyon area, just east of San Ysidro Jr. High School 89 Comment
  SD20228 Image available Eustachys distichophylla Frank F. Gander 1938-1-7 4901 San Diego Roadside near San Ysidro Comment
  SD112466  Extriplex californica Darley F. Howe 1936-5-24 334 San Diego Mouth Tiajuana River Comment
  SD221977  Extriplex californica Michael G. Simpson, Debbie Wood, Lisa Cox 2011-4-28 3418 San Diego Tijuana Estuary. Edge of walking path, ca. 0.3 mile south of junction with 5th and Iris, Imperial Beach. 2 Comment
  CAS-BOT-BC171055  Fagonia laevis LeRoy Abrams 1903-5-15 3500 San Diego Tijuana [Tia Juana], Southern California Comment
  SD114504  Fagonia laevis Darley F. Howe 1937-5-8 499 San Diego Canyon off road from San Ysidro northeast to Otay Mesa Comment
  POM278127A  Ferocactus viridescens Lyman Benson 1950-4-29 14336 San Diego Hill 3/8 mile east of ocean and 3/4 mile north of Mexico, Coons Ranch. Pacific Slope drainage area. 30 Comment
  POM278127B  Ferocactus viridescens Lyman Benson 1950-4-29 14336 San Diego Hill 3/8 mile east of ocean and 3/4 mile north of Mexico, Coons Ranch. Pacific Slope drainage area. 30 Comment
  POM316997  Ferocactus viridescens Edward Anderson 1963-7-12 1995 San Diego 1/4 mile north of the international border and about 1 mile east of the Pacific Ocean. Followed Dairy Mart Road south from freeway to Monument Road; then west toward ocean. Last large hill next to the road. 30 Comment
  RSA439067  Ferocactus viridescens H. G. Rush 1948-5-30 s.n. San Diego 1 mile south of Otay, east of National Blvd. Comment
  SD13297  Ferocactus viridescens Frank F. Gander 1936-1-28 489 San Diego Near Border Monument 258, on shore of Pacific. (IPB 8/07) Comment
  SD180371  Ferocactus viridescens Phillip Roullard 2006-6-7 125 San Diego Otay Mesa, Border Field State Park, Border Field Bluffs, 1.0 mi W of Hollister Street, 0.33 mi N of U.S. Mexico border 29 Comment
  SD45802  Ferocactus viridescens Charles F. Harbison 1955-3-10 San Diego International Monument 258; (type locality). (IPB 8/07) Comment
  SD196132  Festuca perennis Phillip Roullard 2006-5-17 115 San Diego Imperial Beach, Tijuana Slough National Wildlife Refuge, E of Tower Road, Rivermouth Trail, N of Tijuana River, along W end of Imperial Beach Naval Auxillary Landing Field, 2 Comment
  SD219205  Festuca perennis Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22512 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; east-facing lower slope of Bunker Hill 85 Comment
  POM3326  Foeniculum vulgare Minnie Reed 1896-8-16 10309 San Diego Otay Comment
  SD171123  Foeniculum vulgare Phillip Roullard 2005-6-10 65 San Diego Tijuana Slough National Wildlife Refuge, Rivermouth trail. 0.2 mi SW of trailhead at intersection of 5th St and Iris Ave, along the NW boundary of the Imperial Beach Naval Air Station. 3 Comment
  SD171124  Foeniculum vulgare Phillip Roullard 2004-12-17 7 San Diego Border Field Bluffs, S of city of Imperial Beach. 1 mi E of intersection of Monumen Rd and Hollister St. Plant is on south side of Vista del estero road up the slope 15 feet. 49 Comment
  CLARK-A1045-1323  Frankenia grandifolia George K. Helmkamp 1977-10-15 San Diego Imperial Beach in Border Field State Park; in alkali flat, growing with Distichlis; Imperial Beach 7.5'Q Comment
  CAS-BOT-BC223836  Frankenia palmeri A. C. Herre 1902-8-1 s.n. San Diego Tia Juana Riv. Comment
  SD204358  Frankenia palmeri Phillip Roullard 2008-3-21 204 San Diego Border Field State Park, just north of Monument mesa on the beach, about .29 miles north to a high vegetated dune. 3 Comment
  UCR130263  Frankenia palmeri Robert Noll 2003-11-19 s.n. San Diego Tijuana River Valley, Tijuana River Estuary 3 Comment
  CAS-BOT-BC211675  Frankenia salina Reid Moran 1950-5-25 3413 San Diego Sandspit south of Imperial Beach Comment
  GH376482  Frankenia salina M. F. Spencer 1921-10-24 1872 Unknown Salt marshes near Mexican line Comment
  SD113455  Frankenia salina Darley F. Howe 1935-6-23 239 San Diego Mouth of Tia Juana River Comment
  SD170735  Frankenia salina Phillip Roullard 2005-6-3 55 San Diego Tijuana Slough National Wildlife Refuge. From Tijuana estuary visitor center parking lot, south on the McCoy trail 1/8th mi, west side just down the embankment. 2 Comment
  SD191206  Frankenia salina Phillip Roullard 2006-5-17 110 San Diego Imperial Beach, Tijuana Slough National Wildlife Refuge, E of Tower Road, Rivermouth Trail, N of Tijuana River, along W end of Imperial Beach Naval Auxillary Landing Field, 2 Comment
  SD45215  Frankenia salina Reid Moran 1950-5-25 3413 San Diego Sandspit south of Imperial Beach Comment
  SD79881 Image available Frankenia salina Helen V. Witham 1970-10-12 1164 San Diego Scattered, 2 miles south of Third and Palm, Imperial Beach. 2 Comment
  SD83473  Frankenia salina R. Mitchel Beauchamp 1970-9-18 1328 San Diego in tidal marsh, Imperial Beach Comment
  UC967437  Frankenia salina Reid Moran 1950-5-25 3413 San Diego s of Imperial Beach Comment
  RSA1745  Galium angustifolium subsp. angustifolium Carl B. Wolf 1931-5-26 2095 San Diego 1 mile SW of Otay, on the road to Tijuana. 61 Comment
  SD219599  Galium angustifolium subsp. angustifolium Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22479 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  UC527511  Galium angustifolium subsp. angustifolium C. B. Wolf 1931-5-26 2095 San Diego 1 mi sw Otay (on road to Tijuana) 60 Comment
  SD219601  Galium aparine Jon P. Rebman, W. Schmidtmann and J. Rocks 2012-2-17 22541 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; north of the USA/Mexico border fence; lower north-facing slope of Bunker Hill near dirt road and canyon bottom 20 Comment
  POM156394  Galium porrigens L. R. Abrams 1903-5-14 3490 San Diego Tia Juana Comment
  SD201946  Galium porrigens var. porrigens Phillip Roullard 2008-3-14 196 San Diego Border Field State Park, at base of east facing slope, south towards the border fence, about 1.3 mi east of Pacific Ocean and .15 miles northeast of Border Monument #257 27 Comment
  SEINET5321350  Gilia angelensis A. G. Vestal 1962-3-28 San Diego Chula Vista; Junction of Sweetwater Road & Spring Valley Road [South Bay FWY], northeast of Chula Vista. National City Quadrangle UTM Zone 11, 493714mE, 3613343mN Comment
  CAS-BOT-BC407816  Gilia ochroleuca subsp. exilis F. W. Peirson 1903-5-15 3507 San Diego Tia Juana river, Tia Juana Comment
  CAS-BOT-BC407817  Gilia ochroleuca subsp. exilis F. W. Peirson 1903-5-15 3507 San Diego Tia Juana river, Tia Juana Comment
  SD115701  Glebionis coronaria Duffie Clemons 1984-5-8 840 San Diego Canyon north of Palm Avenue and Desty, Imperial Beach. 24 Comment
  SD170885  Glebionis coronaria Phillip Roullard 2005-3-11 16 San Diego Border Field State Park, S of city of Imperial Beach. South Mesa flat area west side of road as it heads south to the US/Mexico border fence. 29 Comment
  SD161065 Image available Glebionis segetum Phillip Roullard 2005-6-3 57 San Diego Tijuana Slough National Wildlife Refuge. From Tijuana estuary visitor center parking lot, south on the McCoy trail 0.2 miles, east side of the trail. 2 Comment
  CAS-BOT-BC303872  Gnaphalium Alice Eastwood 1913-4-24 2918 San Diego Tia Juana Comment
  UC32023  Gnaphalium palustre C. R. Orcutt 1884-5-13 San Diego Otay Comment
  UCR147160  Gnaphalium stramineum Jon P. Rebman, K. Rich, O. Solis, John Klavzar, Robert K. Lauri 2000-5-26 6704 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  SDSU2683  Gutierrezia californica Unknown 1931-7-1 1542 San Diego Tiajuana River Estuary. Comment
  CAS-BOT-BC302189  Gutierrezia sarothrae A. C. Herre 1902-8-8 s.n. San Diego Tia Juana River Comment
  CAS-BOT-BC302199  Gutierrezia sarothrae S. G. Stokes 1895-7-1 s.n. San Diego Tia Juana Comment
  CLARK-A1045-1324  Haplopappus venetus subsp. oxyphyllus George K. Helmkamp 1977-10-15 San Diego Imperial Beach in Border Field State Park; isandy area just off beach, ; Imperial Beach 7.5'Q Comment
  SD15046  Harpagonella palmeri Frank F. Gander 1936-4-28 1636 San Diego Otay Comment
  SD190936  Hedypnois cretica Phillip Roullard 2006-6-7 124 San Diego Imperial Beach, Tijuana Slough National Wildlife Refuge, E of Tower Road, Rivermouth Trail, N of Tijuana River, along W end of Imperial Beach Naval Auxillary Landing Field, 2 Comment
  CDA36605  Helianthemum scoparium var. aldersonii A. C. Browne 1953-8-24 San Diego Spooner Ranch, Tijuana Valley. 0 Comment
  SD112704  Helianthus annuus Darley F. Howe 1944-8-6 1240 San Diego I(c) mile west of Palm City Comment
  SD124552  Helianthus annuus Henk van der Werff 1981-6-15 4324 San Diego Roadside near Border Field Park, along Tijuana River. Comment
  SD171004  Helianthus annuus Phillip Roullard 2005-6-24 81 San Diego Smuggler's Canyon (NE section), S of city of Imperial Beach, on Monument Rd just E of intersection with Hollister St. 10 Comment
  UCR44526  Helianthus annuus H. van der Werff 1981-6-15 4324 San Diego South Coast, near Border Field Park along Tijuana River Comment
  RSA360124  Helianthus annuus subsp. lenticularis H. van der Werff 1981-6-15 4324 San Diego Roadside near Border Feild Park along Tijuana river. Comment
  POM248665  Helianthus ciliaris E. Johnson 1939-10 s.n. San Diego Otay Comment
  SD174378  Heliotropium curassavicum Phillip Roullard 2005-6-3 63 San Diego Tijuana Slough National Wildlife Refuge, from the Tijuana estuary visitor center parking lot, south onto the McCoy trail about 0.25 miles, 50' west off the trail. 4 Comment
  SDSU4535  Heliotropium curassavicum unknown 1931-7-1 1375 San Diego Tiajuana R. Estuary. Comment
  POM64176  Heliotropium curassavicum var. oculatum Minnie Reed 1896-7-16 11796 San Diego Otay Road. Comment
  SD13264  Heliotropium curassavicum var. oculatum Frank F. Gander 1936-1-28 518 San Diego Salt marsh 1I(c) miles northeast of Monument 258 Comment
  SD83484  Heliotropium curassavicum var. oculatum R. Mitchel Beauchamp, R. C. Pierce 1970-12-5 1407 San Diego Tijuana River Valley 4 Comment
  POM156548  Hemizonia fasciculata L. R. Abrams 1903-5-16 3518 San Diego Hills near Tia Juana Comment
  UCR147166  Hemizonia fasciculata Jon P. Rebman, K. Rich, O. Solis, John Klavzar, Robert K. Lauri 2000-5-26 6709 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  RSA799714  Hesperocnide tenella LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5912 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD219637  Hesperocnide tenella Jon P. Rebman, W. Schmidtmann and J. Rocks 2012-2-17 22547 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; north of the USA/Mexico border fence; lower north-facing slope of Bunker Hill near dirt road and canyon bottom 20 Comment
  SD170535  Heteromeles arbutifolia Phillip Roullard 2005-6-24 79 San Diego Smuggler's Canyon (NE section), S of city of Imperial Beach, on Monument Rd just E of intersection with Hollister St. 11 Comment
  SD171003  Heterotheca grandiflora Phillip Roullard 2004-12-17 15 San Diego Border Field Bluffs, 0.7 mi E of intersection of Monument Rd and Hollister St., 0.5 mi N of US/Mexico border fence. Plant is along Vista del estero road on top of mesa. 46 Comment
  SD83488  Heterotheca grandiflora R. Mitchel Beauchamp, R. C. Pierce 1970-12-5 1401 San Diego Tijuana River Valley 4 Comment
  SDSU4600  Heterotheca grandiflora unknown 1931-7-1 1545 San Diego Tiajuana R. Estuary, Southwestern. Comment
  CAS-BOT-BC311153  Heterotheca sessiliflora A. C. Herre 1902-8-8 s.n. San Diego Tia Juana River Comment
  CAS-BOT-BC311154  Heterotheca sessiliflora Harley P. Chandler 1903-10-3 4117 San Diego S. San Diego 7 Comment
  CAS-BOT-BC311155  Heterotheca sessiliflora E. R. Johnson 1928-6-11 s.n. San Diego Near National Monument, sw. corner of U.S. Comment
  RSA0075936  Heterotheca sessiliflora LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5898 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD113211  Heterotheca sessiliflora subsp. sessiliflora D. F. Howe 1935-8-4 296 San Diego Between mouth of Tia Juana river and international boundry. Comment
  SD13468  Heterotheca sessiliflora subsp. sessiliflora Susan G. Stokes June 1905 San Diego Tia Juana Comment
  SD180446  Heterotheca sessiliflora subsp. sessiliflora Phillip Roullard 2005-10-27 91 San Diego Border Field State Park, Lichty Mesa, next to northern side of the U.S./Mexico Border fence, approx. 2 mi WSW of the intersection of Hollister Rd and Monument Rd. 14 Comment
  SD201364  Heterotheca sessiliflora subsp. sessiliflora Phillip Roullard 2008-2-29 171 San Diego Border Field State Park, Lichty Mesa, Mesa is the one just east of Monument Mesa, plant is located in a cluster of Agave shawii to the east side of the mesa about 1/2 mile east from beach 15 Comment
  SD83477  Heterotheca sessiliflora subsp. sessiliflora R. Mitchel Beauchamp, R. C. Pierce 1970-12-5 1400 San Diego Tijuana River Valley. 4 Comment
  SD85606  Heterotheca sessiliflora subsp. sessiliflora R. Mitchel Beauchamp, R. C. Pierce 1970-12-21 1478 San Diego Tijuana River Valley. 4 Comment
  SD85763  Heterotheca sessiliflora subsp. sessiliflora R. Mitchel Beauchamp 1970-12-6 1467 San Diego River bed, Tijuana River Valley. 4 Comment
  SD171083  Hirschfeldia incana Phillip Roullard 2004-12-17 14 San Diego Border Field Bluffs, 0.6 mi SW of intersection of Monument Rd and 19th St, 0.4 mi N of US/Mexico border fence, NE of Goat Canyon. 56 Comment
  SD171084  Hirschfeldia incana Phillip Roullard 2005-6-10 68 San Diego Tijuana Slough National Wildlife Refuge, Rivermouth trail. 0.6 mi SWS of trailhead at intersection of 5th St and Iris Ave, just W of SW section of Imperial Beach Naval Air Station. 3 Comment
  RSA0119578  Hordeum intercedens Mark A. Elvin, Dan Brown, Brian Collins 2001-5-8 1640 San Diego South Coast Region: San Diego; Sweetwater Marsh National Wildlife Refuge, along Otay River Channel near confluence with Nestor Creek. 250 m up Nestor Creek. 2 Comment
  UCR264095  Hordeum intercedens Mark A. Elvin, Dan Brown, Brian Collins 2001-5-8 1640 San Diego South Coast, San Diego, Sweetwater Marsh National Wildlife Refuge, along Otay River channel near confluence with Nestor Creek 2 Comment
  SD211853  Hordeum marinum subsp. gussoneanum Phillip Roullard 2006-5-17 112 San Diego Imperial Beach, Tijuana Slough National Wildlife Refuge, E of Tower Road, Rivermouth Trail, N of Tijuana River, along W end of Imperial Beach Naval Auxillary Landing Field, 2 Comment
  SD219200  Hordeum murinum subsp. glaucum Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22511 A San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; east-facing lower slope of Bunker Hill 85 Comment
  SD208741  Hornungia procumbens Phillip Roullard 2008-1-22 218 San Diego Imperial Beach, Tijuana Slough National Wildlife Refuge, El Centro Street (McCoy trail), 0.35mi S of El Centro Street and Caspian Way, 0.75 mi NW of intersection Tower Road and Monument Road 3 Comment
  CDA7993  Hymenoclea monogyra T. C. Fuller 1962-10-16 9759 San Diego Tia Juana River, south of Highway 101 freeway at Dairy Mart Road, San Ysidro. 0 Comment
  SBBG61693  Hymenoclea monogyra R. Hoffmann 1928-10-18 Unknown low ground, Tia Juana [Tijuana] Comment
  SEINET2047723 Image available Hymenoclea monogyra Dave Silverman 1999-11-13 424 San Diego Lower Sweetwater River, SW San Diego Co. Dept of Public Works mitigation site, adjacent to lBonita Rd. 60 acre area W. of Willow St. 12 Comment
  UCR15308  Hymenoclea monogyra Frank C. Vasek, O. F. Clarke 1976-10-15 s.n. San Diego San Ysidro Ave just north of border off Hwy 5 Comment
  UCR18307  Hymenoclea monogyra A. C. Sanders 1979-10-13 00140 San Diego South Coast, Tijuana River Valley south of Imperial Beach, side canyon [Smuggler Gulch] on the south side of Monument Rd., 'Windover Ranch 15 Comment
  RSA66565  Hymenolobus procumbens F. W. Peirson 3361 San Diego Imperial Beach. Comment
  SD204401  Hypericum canariense Phillip Roullard 2008-4-11 211 San Diego Border Field State Park, at the eastern base of Bunker Hill, on the southeast side of the trail, about 1.2 miles east of Pacific Ocean and .18 mi north of US/Mexico border 25 Comment
  RSA799708  Hypochaeris glabra LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5904 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD170997  Hypochaeris glabra Phillip Roullard 2005-3-11 19 San Diego Border Field State Park, S of city of Imperial Beach. South Mesa flat area west of road as it heads south to the US/Mexico border fence. 29 Comment
  SD242479  Hypochaeris glabra Phillip Roullard, Chris Peregrin 2010-3-15 298 San Diego Border Field State Park; 1.4 mile WSW of intersection Hollister Road and Monument Road; 150 yards N of the border; West Side of Bunker Hill 70 Comment
  UCR236670  Isocoma Fred M. Roberts, Carolyn Martus, Cindy Burrascano 2006-8-20 6400 San Diego U.S.-Mexican border, mesa immediately east of mesa with Friendship Park, 0.4 km ENE Boundary Marker 258 34 Comment
  GH417984  Isocoma menziesii F. J. Youngberg 1934-10-26 24 Unknown Imperial Beach Comment
  OBI78739  Isocoma menziesii Fred M. Roberts, Vince Scheidt 2011-7-15 7458 San Diego Leichty Mesa along US/Mexican border adjacent to Border Fields State Park about 0.5 km ENE Boundary Marker 258 (Friendship Park). San Diego Plant Atlas Grid W10. (Imperial Beach 7.5' T19S R2W S8, SW/4 SW/4; 11S -04 88 919mE, 35 99 796N) 20 Comment
  POM211983  Isocoma menziesii Florence J. Youngberg 1934-8-19 19 San Diego Tiajuana River bottom, 2 miles from ocean Comment
  CAS-BOT-BC311624  Isocoma menziesii var. decumbens Florence Youngberg 1934-8-19 19 San Diego Tiajuana River bottom, 2 miles from ocean Comment
  CAS-BOT-BC311646  Isocoma menziesii var. decumbens Florence Youngberg 1934-10-26 13 San Diego Between Imperial Beach and Palm City Comment
  CAS-BOT-BC311647  Isocoma menziesii var. decumbens Florence Youngberg 1934-10-26 13 San Diego Between Imperial Beach and Palm City Comment
  POM211985  Isocoma menziesii var. decumbens Florence J. Youngberg 1934-8-19 20 San Diego Tiajuana River bottom, 2 miles from ocean Comment
  POM211994  Isocoma menziesii var. decumbens Florence J. Youngberg 1934-10-26 13 San Diego Between Imperial Beach and Palm City Comment
  SD219331  Isocoma menziesii var. decumbens Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22491 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  CDA8030  Isocoma menziesii var. menziesii T. C. Fuller 1962-10-16 9766 San Diego Otay Mesa Road, 0.6 mile north of San Ysidro. 0 Comment
  SD112605  Isocoma menziesii var. menziesii Darley F. Howe 1935-8-25 300 San Diego Otay Comment
  SD80829 Image available Isocoma menziesii var. menziesii Helen V. Witham 1970-10-12 1168 San Diego Occasional , 1.1 miles south of Third and Palm, Imperial Beach. Disturbed area, edge of Slough. ca. 2 m above high water. 2 Comment
  UC221412  Isocoma menziesii var. menziesii Katharine Brandegee July 1900-July 1902 San Diego Initial Monument Comment
  UC221417  Isocoma menziesii var. menziesii Katharine Brandegee 1900-1 San Diego Initial Monument Comment
  SD167795  Isocoma menziesii var. vernonioides Phillip Roullard 2004-11-22 2 San Diego Border Field State Park, from park entrance gate, continue west to where the road turns left. Go right instead up dirt road/horse trail approximately 1/8 mile, plant is on right 3 Comment
  SDSU2742  Isocoma menziesii var. vernonioides unknown 1931-7-1 1551 San Diego Tiajuana River Estuary. Comment
  CDA25311  Isomeris arborea A. C. Browne 1953-8-4 s.n. San Diego Spooner Ranch, Tijuana Valley. 0 Comment
  CAS-BOT-BC324878  Iva hayesiana LeRoy Abrams 1903-5-14 3514 San Diego Tia Juana River, Tia Juana Comment
  CAS-BOT-BC324879  Iva hayesiana A. C. Herre 1902-8-8 s.n. San Diego Tia Juana River Comment
  POM156545  Iva hayesiana L. R. Abrams 1903-5-14 3514 San Diego Tia Juana Comment
  POM266296  Iva hayesiana J. C. Roos 1937-8-30 2551 San Diego South of Otay. Comment
  SD83507 Image available Iva hayesiana R. Mitchel Beauchamp, R. C. Pierce 1970-9-18 1337 San Diego Dry stream bed, canyon on south side of Otay River Valley. Comment
  SDSU2755  Iva hayesiana unknown 1931-7-1 1566 San Diego Tiajuana River Estuary. Comment
  SD83561  Jaumea carnosa R. Mitchel Beauchamp, R. C. Pierce 1970-9-18 1322 San Diego Imperial Beach, tidal marsh littoral zone Comment
  SD83792  Jaumea carnosa Helen V. Witham 1970-10-12 1163 San Diego 2 miles south of Third and Palm, Imperial Beach. 2 Comment
  SDSU139  Jaumea carnosa J. Zedler 1991-7-9 9 VII91A San Diego Tijuana Estuary. Comment
  SD12935  Jepsonia parryi Frank F. Gander 1935-12-5 313 1 San Diego San Ysidro Comment
  SD219611  Jepsonia parryi Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22470 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  CAS-BOT-BC110050  Juncus acutus Le Roy Abrams 1903-5-15 3501 San Diego Tia Juana river, near Tia Juana. Comment
  CAS-BOT-BC110053  Juncus acutus A. C. Herre 1902-8-8 s.n. San Diego Tia Juana River. Comment
  CAS-BOT-BC110055  Juncus acutus Harley P. Chandler 1903-10-3 4000 San Diego South San Diego. 0 Comment
  CAS-BOT-BC110062  Juncus acutus Alice Eastwood 1913-4-24 2925 San Diego Tia Juana. Comment
  POM156585  Juncus acutus subsp. leopoldii Le Roy Abrams 1903-5-15 3501 San Diego Tia Juana river. Tia Juana. [San Ysidro?] Comment
  SD85314 Image available Juncus acutus subsp. leopoldii R. Mitchel Beauchamp, R. C. Pierce 1970-12-5 1455 San Diego In sandy creek bed, Tijuana River Valley 4 Comment
  SDSU156  Juncus acutus subsp. leopoldii unknown 1931-7-1 San Diego Tiajuana River Estuary. Comment
  RSA70058  Juncus bufonius var. occidentalis F. W. Peirson 1923-3-27 3362 San Diego Imperial Beach. Comment
  SD219201  Koeleria macrantha Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22510 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; north-facing slope near top of Bunker Hill 105 Comment
  SD264051  Koeleria macrantha Phillip Roullard, Jon Rebman 2009-4-10 258 San Diego Border Field State Park; Imperial Beach; W side of Bunker Hill near border; 1.34 miles SW of intersection Hollister Road and Monument Road 82 Comment
  SD264052  Koeleria macrantha Phillip Roullard, Jon Rebman 2009-4-18 250 San Diego Border Field State Park; Imperial Beach; W side of Bunker Hill near border; 1.34 miles SW of intersection Hollister Road and Monument Road 82 Comment
  SD174460  Laennecia coulteri Phillip Roullard 2005-9-28 89 San Diego Tijuana Slough National Wildlife Refuge. S side of visitor center parking lot, take McCoy trail, which goes S from the trail junction, go S 1/8 mile, turn W and 300 3 Comment
  SD249861  Lamarckia aurea Phillip Roullard, Chris Peregrin 2010-3-15 288 San Diego Border Field State Park; 1.4 mile WSW of intersection Hollister Road and Monument Road; 150 yards N of the border; West Side of Bunker Hill 70 Comment
  CAS-BOT-BC412773  Lastarriaea coriacea Alice Eastwood 1913-4-24 2914 San Diego Tia Juana Comment
  RSA799668  Lastarriaea coriacea LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5918 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD85829  Lastarriaea coriacea R. Mitchel Beauchamp 1971-5-2 2326 San Diego Flat, exposed mesa, south of Tijuana Valley. 22 Comment
  UC50337  Lastarriaea coriacea H. M. Hall Apr. 1903 3966 San Diego near Last Monument (south-western San Diego County); Southern California Comment
  RSA799669  Lasthenia coronaria LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5919 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD15076  Lasthenia coronaria Frank F. Gander 1936-4-28 1666 San Diego U. S. Boundary Monument #258 Comment
  SD170983  Lasthenia coronaria Phillip Roullard 2005-5-6 38 San Diego Border Field State Park, S of city of Imperial Beach. Lichty Mesa, on road just north of U.S./Mexico border fence, 0.5 mi E of Pacific Ocean. 10 Comment
  SD196297  Lasthenia coronaria Kim Marsden, Cindy Burrascano 2003-3-15 171 San Diego San Diego, Borderfield State Park, Lichty Mesa, 0.33 mi E of beach, 30 yds N of US/Mexico border 24 Comment
  SD201373  Lasthenia coronaria Phillip Roullard 2008-3-14 193 San Diego Border Field State Park, at the eastern base of Bunker Hill, south of city of Imperial Beach. South Mesa, flat area just north of US/Mexico Border fence, 1 mi E of Pacific Ocean and about .1 mi NW of Border Monument 257 71 Comment
  SD85593 Image available Lasthenia coronaria R. Mitchel Beauchamp 1971-5-2 2322 San Diego Grassy slope south of Tijuana Valley. 22 Comment
  UCR249219  Lasthenia coronaria LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5919 San Diego Coastal Plains and Basins; South Coastal Plain Region, Lichty Mesa, Borderfield State Park 20 Comment
  SD112561  Lasthenia glabrata Darley F. Howe 1938-4-24 627 San Diego Tia Juana Valley near ocean. Comment
  SD156666  Lathyrus vestitus var. alefeldii Unknown Mar 1939 San Diego Otay Comment
  CLARK-A1528-3228  Lavatera assurgentiflora John C. Roos 1937-6-13 1431 San Diego Imperial Beach Comment
  RSA429971  Lepidium E. S. Spalding 1924-4-14 s.n. San Diego San Isidro [Ysidro]. Comment
  SD237763  Lepidium didymum Phillip Roullard, Jon Rebman 2009-4-18 262 San Diego Border Field State Park; Imperial Beach; 1.2 miles WSW of intersection Hollister Road and Monument Road near sedimentation basin, W of Spooner's mesa 10 Comment
  SD113487  Lepidium lasiocarpum Darley F. Howe 1941-6-15 1108 San Diego Tijuana Valley, 2 miles from ocean Comment
  SD15074  Lepidium lasiocarpum Frank F. Gander 1936-4-28 1664 San Diego US Boundary Monument #258 Comment
  RSA799707  Lepidium nitidum LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5905 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD241390  Lepidium nitidum Phillip Roullard, Chris Peregrin 2010-3-15 295 San Diego Border Field State Park; 1.4 mile WSW of intersection Hollister Road and Monument Road; 150 yards N of the border; West Side of Bunker Hill 70 Comment
  SD210870  Lepidium nitidum var. nitidum Phillip Roullard 2008-2-29 168 San Diego Border Field State Park, on the western edge of the mesa adjacent to the border, about 1 mile east of Pacific Ocean and .15 mi north of US/Mexico border 35 Comment
  SD152633  Lepidium oblongum var. insulare Mark A. Elvin, Kim Marsden, Megan Enright, & Diona Roja 2002-3-11 1886 San Diego Imperial Beach, Lichte Mesa, slump in north central portiion of mesa, 100m north of US-Mexico border, 620 m east of Pacific Ocean 15 Comment
  SD210872  Lepidium oblongum var. insulare Phillip Roullard 2008-3-21 207 San Diego Border Field State Park, Lichty Mesa, Mesa is the one just east of Monument Mesa, plant is located in a cluster of Agave shawii to the east side of the mesa 18 Comment
  CAS-BOT-BC60129  Lepidium virginicum var. menziesii S. G. Stokes 1895-6-30 s.n. San Diego Tia Juana. Comment
  CDA32451  Leptochloa uninervia T. C. Fuller 1961-10-17 7147 San Diego Junction of road to Otay (Main St.) and Hwy 101, 0.3 miles south of southern limits of Chula Vista 0 Comment
  RSA73044  Leptosiphon androsaceus F. W. Peirson 1923-3-27 3390 San Diego Low slope about saline flat, 1/4 mile from beach; Imperial Beach. Comment
  SD121053  Leptosiphon liniflorus Michael Curto 1986-5-3 292 San Diego Otay Mesa Remnant grassland 46 Comment
  SD113865  Leptosiphon parviflorus Darley F. Howe 1938-4-3 606 San Diego Mesa just north of Tijuana on U.S. side. Comment
  SD87541  Leptosiphon parviflorus F. W. Peirson 1923-3-27 3390 San Diego Imperial Beach, low slope about saline flat Comment
  RSA799782  Leptosyne maritima LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5929 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD128783 Image available Leptosyne maritima Geoffrey A. Levin, Melanie Howe 1990-4-9 2054 San Diego Small canyon off Goat Canyon, west end of Spooners Mesa Steep north-facing slope 74 Comment
  SD15071  Leptosyne maritima Frank F. Gander 1936-4-28 1661 San Diego U. S. Boundary Monument 258. Comment
  SD201325  Leptosyne maritima Phillip Roullard 2008-3-14 190 San Diego Border Field State Park, top of Bunker hill east side of the ridge, down from the top of the ridge approximately 100', about 1.2 mi east of Pacific Ocean and .1 miles north of Border Monument #257 35 Comment
  SD219345  Leptosyne maritima Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22508 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; north-facing slope near top of Bunker Hill 105 Comment
  SD83550  Leptosyne maritima R. Mitchel Beauchamp 1971-2-21 1645 San Diego On bluffs, north end of Spooner's Mesa, near International Border (mak 10/07) 124 Comment
  CDA8185  Lessingia filaginifolia var. filaginifolia A. C. Browne 1953-8-24 San Diego Spooner Ranch, Tijuana Valley. 0 Comment
  CAS-BOT-BC274554  Leymus triticoides LeRoy Abrams 1903-5-15 3502 San Diego Tia Juana River, Tia Juana Comment
  RSA156771  Leymus triticoides Le Roy Abrams 1903-5-15 3502 San Diego Tia Juana river. Tia Juana. [San Ysidro?] Comment
  HSC78512  Limonium californicum O. F. Clarke 1967-10-21 San Diego Tia Juana River. Comment
  SD113734  Limonium californicum Darley F. Howe 1935-9-22 302 San Diego Tia Juana slough Comment
  SD211132  Limonium californicum Phillip Roullard 2005-9-23 87 San Diego Tijuana Slough National Wildlife Refuge. S side of visitor center parking lot, take McCoy trail, which goes S from the trail junction, go S 1/8 mile, turn W and 300 2 Comment
  SD79883 Image available Limonium californicum Helen V. Witham 1970-10-12 1158 San Diego In marsh, scattered, 2 miles south of Third and Palm, Imperial Beach. 2 Comment
  SD83501  Limonium californicum R. Mitchel Beauchamp, R. C. Pierce 1970-9-18 1326 San Diego In drier, raised areas of tidal marsh, Imperial Beach. Comment
  SDSU1056  Limonium californicum J. E. Fitch 1940-12-17 San Diego Tijuana Estuary Comment
  UCR6770  Limonium californicum O. F. Clarke 1967-10-21 s.n. San Diego Mouth of Tijuana River 2 Comment
  SD220076 Image available Limonium otolepis Mark A. Elvin, Tricia Wotipka 2004-11-4 3817 San Diego San Ysidro, Tijuana River Valley, north of Tijuana River near intersection of Satrun and Leon Roads. 7 Comment
  UCR175612  Limonium otolepis Mark A. Elvin, Tricia Wotipka 2004-11-4 3817 San Diego Southern Coastal, San Ysidro: Tijuana River Valley, N of Tijuana River near the intersection of Saturn and Leon Rds 8 Comment
  SD174171  Limonium perezii Phillip Roullard 2005-1-3 59 San Diego Tijuana Slough National Wildlife Refuge. From Tijuana estuary visitor center parking lot, south on the McCoy trail 0.1 miles, 50' off the trail to the west. 4 Comment
  SD174172  Limonium perezii Phillip Roullard 2005-4-15 36 San Diego Border Field State Park, S of city of Imperial Beach. On outer edge of Monument Mesa Picnic area near U.S./Mexico Border Fence, 0.2 mi E of Pacific Ocean. 29 Comment
  JEPS20270  Limonium sinuatum Frank W. Peirson 1923-3-27 3397 San Diego Imperial Beach 0 Comment
  SD203584  Linanthus dianthiflorus Phillip Roullard 2008-2-29 165 San Diego Border Field State Park, on the western edge of the mesa adjacent to the border, about 1 mile east of Pacific Ocean and .25 mi north of US/Mexico border. 32 Comment
  RSA73088  Linanthus dianthiflorus subsp. dianthiflorus F. W. Peirson 1923-3-27 4197 San Diego edge of saline flat, 1/4 mile from Imperial Beach. Comment
  SD115700 Image available Lobularia maritima Duffie Clemons 1984-5-8 839 San Diego In small canyon north of Palm Ave. and Desty. Imperial Beach quad. In moist soil 15 Comment
  SDSU1193  Lobularia maritima M. L. McGill 1990-2-15 15 II90A San Diego Roadside, Monument Road leading to Border Field State Park, Imperial Beach. Near Perl Gate. Comment
  RSA800001  Loeflingia squarrosa LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5924 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  CAS-BOT-BC342285  Logfia filaginoides Ira L. Wiggins 1928-6-16 3230 San Diego Near Nestor Comment
  UC429857  Logfia filaginoides Ira L. Wiggins 1928-6-16 3230 San Diego dry wash near Nestor Comment
  POM156586  Lotus heermannii L. R. Abrams 1903-5-15 3503 San Diego Hills at Tia Juana. Comment
  UC153545  Lotus heermannii LeRoy Abrams 1903-5-15 3503 San Diego Tia Juana river Tia Juana Comment
  SEINET4035371  Lotus junceus var. junceus O. M. Clark 1941-1 10061 San Diego Imperial Beach. Comment
  POM156395  Lotus nuttallianus L. R. Abrams 1904-5-14 3486 San Diego Tia Juana River Comment
  SDSU4312  Lotus nuttallianus unknown 1931-7-1 San Diego Tia Juana R. Estuary. Comment
  UC56223  Lotus nuttallianus H. M. Hall Apr 1903 3958 San Diego Tia Juana Wash Comment
  UCR255313  Lotus purshianus var. purshianus Phillip Roullard 2011-8-7 339 San Diego Border Field state Park; Monument Mesa, west end; 200 yards east of Pacific Ocean and 200 yards north of the border; parking lot adjacent to Monument Mesa on the north side. Square: W10 16 Comment
  UC81133  Lotus salsuginosus Katharine Brandegee San Diego Oneonta Comment
  POM1872  Lotus scoparius L. R. Abrams 1903-5-14 3469 San Diego Hills at Tia Juana, U.S. side of line. Comment
  UC153548  Lotus scoparius Le Roy Abrams 1903-5-14 3469 San Diego Tia Juana Comment
  SEINET197556 Image available Lotus scoparius var. scoparius Unknown, Scott Steppan 1883-2-24 San Diego 100 feet from lower California. Comment
  UCR25010  Ludwigia hexapetala George K. Helmkamp 1981-8-21 s.n. San Diego Tijuana River Valley, San Ysidro, ponds on Dairy Mart Road, just west of Interstate Hwy 5 Comment
  SD220696  Ludwigia peploides subsp. peploides Lisa Ordonez, John Boland 2011-8-10 San Diego Tijuana River Valley, where Dairy Mart Road crosses the Tijuana River Comment
  UCR255295  Ludwigia peploides subsp. peploides Lisa Ordonez, John M. Boland 2011-8-10 s.n. San Diego Tijuana River Valley, where Dairy Mart Road crosses the Tijuana River Comment
  SD113685  Lupinus bicolor Darley F. Howe 1935-3-17 139 San Diego Otay. Comment
  UC50445  Lupinus concinnus H. M. Hall Apr. 1903 3970 San Diego Tia Juana Wash Comment
  SD15065  Lupinus truncatus Frank F. Gander 1936-4-28 1655 San Diego Near Monument School, San Diego. Comment
  SD246913  Lupinus truncatus Phillip Roullard 2010-3-22 325 San Diego Border Field State Park; 1.65 mile WSW of intersection Hollister Road and Monument Road; 420 yards N of the border at base of bluffs below Bunker Hill 13 Comment
  SDSU4640  Lupinus truncatus C. M. Johnson 1989-5-7 7 V89B San Diego 3 miles south of Coronado Cays Blvd., Silver Strand. Comment
  CAS-BOT-BC233444  Lycium andersonii LeRoy Abrams 1903-5-14 3491 San Diego Hills at Tia Juana Comment
  POM156437  Lycium andersonii L. R. Abrams 1903-5-14 3491 San Diego Hills at Tia Juana, U.S. side of line. Comment
  SD114448  Lycium andersonii Darley F. Howe 1939-2-26 765 San Diego Mesa just above Tijuana on the U.S. side Comment
  SD132707  Lycium barbarum Darley F. Howe 1935-7-7 288 San Diego Lower Tia Juana River. Comment
  SD37355  Lycium barbarum Charles F. Harbison 1935-8-10 San Diego Tia Juana River bottom, near Monument Schoolhouse Comment
  SD4474  Lycium barbarum Charles F. Harbison 1934-8-19 San Diego Tia Juana River bed, 2 mi. from ocean Comment
  SDSU11109  Lycium barbarum Charles Harbison 1934-8-19 San Diego Tiajuana River bed. about 2 mile from ocean. Comment
  RSA256996  Lycium californicum Gary D. Wallace, Larry E. DeBuhr 1972-12-2 1157 San Diego 1/2 mile N of border with Mexico in Border Field State Park, in extreme SW part of the county. Comment
  RSA799783  Lycium californicum LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5930 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD13210  Lycium californicum Frank F. Gander 1936-1-28 490 San Diego Shore of Pacific, near Boundary Monument 258 Comment
  SD15055  Lycium californicum Frank F. Gander 1936-4-28 1645 San Diego Otay Comment
  SD167413  Lycium californicum Phillip Roullard 2004-11-26 4 San Diego Border Field State Park, from park entry gate go straight up paved road, at left turn, go straight instead, continue until short dirt road on right leading to Model Marsh. Plant is near marsh berm. 7 Comment
  SD194107  Lycium californicum Phillip Roullard 2006-5-17 108 San Diego Imperial Beach, Tijuana Slough National Wildlife Refuge, E of Tower Road, Rivermouth Trail, N of Tijuana River, along W end of Imperial Beach Naval Auxillary Landing Field, 2 Comment
  SD83786  Lycium californicum Helen V. Witham 1970-10-12 1157 San Diego 2 miles south of Third & Palm, Imperial Beach. 2 Comment
  SDSU11098  Lycium californicum J. E. Fitch 1940-12-17 San Diego Tia Juana est. Comment
  POM211949  Lycium chinense Florence J. Youngberg 1934-8-19 29 San Diego Tiajuana River bottom, 2 miles from ocean Comment
  RSA14614  Lycium chinense G. F. Harbison 1935-8-10 s.n. San Diego Tia Juana River bottom near Monument School house. Comment
  POM212297  Lythrum hyssopifolia Carl B. Wolf 1931-5-26 2090 San Diego 1 mile SW of Otay, on the road to Tijuana. 61 Comment
  RSA1733  Lythrum hyssopifolia Carl B. Wolf 1931-5-26 2090 San Diego 1 mile SW of Otay, on the road to Tijuana. 61 Comment
  UC527522  Lythrum hyssopifolia C. B. Wolf 1931-5-26 San Diego 1 mi sw of Otay (on road to Tijuana) 60 Comment
  UCR19116  Lythrum hyssopifolia John C. Roos 1937-6-13 1437 San Diego Eastern part of town [of Imperial Beach?] Comment
  CAS-BOT-BC206176  Malacothamnus densiflorus Harley P. Chandler 1904-4-24 5095 San Diego Oneonta 7 Comment
  CDA35818  Malacothamnus fasciculatus A. C. Browne 1953-8-4 San Diego Spooner Ranch, Tijuana Valley. 0 Comment
  RSA696079  Malacothamnus fasciculatus Jon P. Rebman, K. Rich, B. Laurie, Oscar Solis, John K. 2000-5-26 6708 San Diego Moody Canyon area, just E of San Ysidro Jr. High School. 90 Comment
  SD113763  Malacothamnus fasciculatus Darley F. Howe 1935-6-2 240 San Diego Lower Tia Juana Valley Comment
  SD154546  Malacothamnus fasciculatus Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6708 San Diego Moody Canyon area, just east of San Ysidro Jr. High School 89 Comment
  SD174235  Malacothamnus fasciculatus Phillip Roullard 2005-5-13 48 San Diego South of the city of Imperial Beach, E of Smuggler Gulch, on road just N of US/Mexico border fence, 0.4 mi SE of intersection of Hollister Rd and Monument Rd. 92 Comment
  SD85825  Malacothamnus fasciculatus R. Mitchel Beauchamp 1971-5-2 2330 San Diego In chaparral south of Monument Road, Tijuana Valley 22 Comment
  UCR147157  Malacothamnus fasciculatus Jon P. Rebman, K. Rich, O. Solis, John Klavzar, Robert K. Lauri 2000-5-26 6708 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  SDSU195  Malacothamnus fasciculatus subsp. fasciculatus R. M. Beauchamp 1965-6-17 258 San Diego Boundary Monument # 258. Comment
  CAS-BOT-BC347784  Malacothrix glabrata LeRoy Abrams 1903-5-15 3508 San Diego Tia Juana river, Tia Juana Comment
  SD245526  Malephora crocea Phillip Roullard, K. Uyeda, Dr. Jeff Crooks 2008-2-27 220 San Diego Imperial Beach; W side of Tower Road vicinity of 0.75 mile S of Imperial Beach Blvd.; near W end of Nolf Airport (Ream Field). 2 Comment
  CAS-BOT-BC170398  Malosma laurina Harley P. Chandler 1903-10-3 4122 San Diego S. San Diego 7 Comment
  CAS-BOT-BC170399  Malosma laurina Harley P. Chandler 1903-10-3 4122 San Diego S. San Diego 7 Comment
  SD171137  Malosma laurina Phillip Roullard 2005-5-17 45 San Diego South of the city of Imperial Beach, E of Smuggler Gulch, on road just N of US/Mexico border fence, 0.4 mi SE of intersection of Hollister Rd and Monument Rd. 92 Comment
  SD219256  Malosma laurina Jon P. Rebman, W. Schmidtmann and J. Rocks 2012-2-17 22543 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; north of the USA/Mexico border fence; lower north-facing slope of Bunker Hill near dirt road and canyon bottom 20 Comment
  SDSU2216  Malosma laurina Uknown 1931-7-1 San Diego Tijuana River Estuary Comment
  SD79408  Malva assurgentiflora Reid Moran 1970-2-7 16718 San Diego Few at roadside, Monument Road at Dairymart Road, west of San Ysidro Comment
  CDA35817  Malva parviflora P. Roullard 2006-5-17 109 San Diego Imperial Beach, Tijuana Slough National Wildlife Refuge, west of 5th Street, _ east of Seacoast Drive, north of Tijuana River, along west end of Imperial Beach Naval Auxillary Landing Field. Comment
  SD13268  Malva parviflora Frank F. Gander 1936-1-28 521 San Diego Tiajuana River near Monument School Comment
  SD193888  Malva parviflora Phillip Roullard 2006-5-17 109 San Diego Imperial Beach, Tijuana Slough National Wildlife Refuge, W of 5th Street, I(c) E of Seacoast Drive, N of Tijuana River, along W end of Imperial Beach Naval Auxillary Landing Field, 2 Comment
  SD113769  Malvella leprosa Darley F. Howe 1935-8-25 298 San Diego Nestor Comment
  POM285765  Mammillaria dioica Lyman Benson 1950-4-29 14338 San Diego Northwest corner of Spooner Ranch. 1/2 east of the ocean, mile north of Mex. 15 Comment
  POM316966  Mammillaria dioica Edward Anderson 1963-7-12 1996 San Diego 1/4 mile north of the international border and about 1 mile east of the Pacific Ocean. Followed Dairy Mart Road south from freeway to Monument Road; then west toward ocean. Last large hill next to the road. 30 Comment
  SD113519  Mammillaria dioica Darley F. Howe 1939-3-19 769 San Diego Otay Mesa, just north of San Ysidro. (IPB 9/07) Comment
  RSA43742  Marah macrocarpa Higgins, Charles F. Harbison 1949-3-1 s.n. San Diego Coones Ranch, Mexican border about 2 miles from ocean Comment
  RSA800005  Marah macrocarpa LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5927 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD13257  Marah macrocarpa Frank F. Gander 1936-1-28 498 San Diego Pacific Boundary Monument. Comment
  SD241448  Marah macrocarpa var. macrocarpa Phillip Roullard, Jon Rebman 2009-4-18 249 San Diego Border Field State Park; Imperial Beach; W side of Bunker Hill near border; 1.34 miles SW of intersection Hollister Road and Monument Road 82 Comment
  SD79414 Image available Marah macrocarpa var. macrocarpa Reid Moran 1970-2-7 16721 San Diego Occasional in chaparral, north end of Tijuana Hills, 3 miles west of San Ysidro. 74 Comment
  SD115699 Image available Marrubium vulgare Duffie Clemons 1984-5-8 838 San Diego In moist soil in shade of Phoenix canariensis in small canyon north of Palm Ave. & Desty. Imperial Beach quadrangle. 14 Comment
  SD170687  Marrubium vulgare Phillip Roullard 2005-6-24 78 San Diego Smuggler's Canyon (NE section), S of city of Imperial Beach, on Monument Rd just E of intersection with Hollister St. 11 Comment
  SD191248  Marrubium vulgare Phillip Roullard 2006-6-6 129 San Diego Otay Mesa, Border Field State Park, Border Field Bluffs, Ao mi W of Hollister Street, Ao mi N of U.S. Mexico border on top of mesa 29 Comment
  SD193716  Matthiola incana Phillip Roullard 2007-3-30 140 San Diego Imperial Beach, Border Field State Park, E of Monument Road, A| mi E of beach, just N of U.S. and Mexico border 21 Comment
  SD196384  Matthiola incana Kim Marsden 2003-3-22 175 San Diego San Diego, Borderfield State Park, Lichty Mesa, 0.33 mi E of beach, 30 yds N of US/Mexico border 24 Comment
  RSA696077  Melica frutescens Jon P. Rebman, K. Rich, B. Laurie, Oscar Solis, John K. 2000-5-26 6701 San Diego Moody Canyon area, just E of San Ysidro Jr. High School. 90 Comment
  SD112909  Melica frutescens Darley F. Howe 1940-4-21 987 San Diego Mesa, south side of Tia Juana Valley Comment
  SD155346  Melica frutescens Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6701 San Diego Moody Canyon area, just east of San Ysidro Jr. High School (IPB 3/07) 89 Comment
  UCR147164  Melica frutescens Jon P. Rebman, K. Rich, O. Solis, John Klavzar, Robert K. Lauri 2000-5-26 6701 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  SD112912  Melica imperfecta Darley F. Howe 1938-4-3 619 San Diego Mesa above Tia Juana, U.S. side. Comment
  SD155345  Melica imperfecta Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6706 San Diego Moody Canyon area, just east of San Ysidro Jr. High School. (IPB 3/07) 89 Comment
  SD250813  Melica imperfecta Phillip Roullard, Jon Rebman 2009-4-18 251 San Diego Border Field State Park; Imperial Beach; W side of Bunker Hill near border; 1.34 miles SW of intersection Hollister Road and Monument Road 82 Comment
  UCR147165  Melica imperfecta Jon P. Rebman, K. Rich, O. Solis, John Klavzar, Robert K. Lauri 2000-5-26 6706 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  SD15062  Melilotus indicus Frank F. Gander 1936-4-28 1652 San Diego Near Monument School Comment
  SD191187  Melilotus indicus Phillip Roullard 2006-5-17 111 San Diego Imperial Beach, Tijuana Slough National Wildlife Refuge, E of Tower Road, Rivermouth Trail, N of Tijuana River, along W end of Imperial Beach Naval Auxillary Landing Field, 2 Comment
  POM156431  Mentzelia affinis L. R. Abrams 1903-5-14 3477 San Diego Hills at Tia Juana, U.S. side of line. Comment
  SD13256  Mesembryanthemum crystallinum Frank F. Gander 1936-1-28 497 San Diego Pacific shore near Boundary monument 258, San Diego Comment
  SD171141  Mesembryanthemum crystallinum Phillip Roullard 2005-4-15 35 San Diego Border Field State Park, S of city of Imperial Beach. Lichty Mesa, on road just north of U.S./Mexico border fence, 0.5 mi E of Pacific Ocean. 29 Comment
  SD171142  Mesembryanthemum crystallinum Phillip Roullard 2005-6-10 75 San Diego Tijuana Slough National Wildlife Refuge, Rivermouth trail. 0.6 mi SWS of trailhead at intersection of 5th St and Iris Ave, just W of SW section of Imperial Beach Naval Air Station. 3 Comment
  SDSU2105  Mesembryanthemum crystallinum T. A. Rowden 1987-4-13 San Diego South bank of Tijuana River, 200 meters east of Dairy Mart Rd. San Ysidro. Comment
  UCR26847  Mesembryanthemum crystallinum A. C. Sanders 1982-6-6 2705 San Diego South Coast, Imperial Beach, mouth of the Tijuana River 2 Comment
  SD22018  Mesembryanthemum nodiflorum Frank F. Gander 1935-7-25 6160 San Diego Near Boundary Monument, No 258 Comment
  SD245538  Mesembryanthemum nodiflorum Phillip Roullard, Jon Rebman 2009-4-18 240 San Diego Border Field State Park; Imperial Beach; W side of Bunker Hill near border; 1.34 miles SW of intersection Hollister Road and Monument Road 82 Comment
  UCR26846  Mesembryanthemum nodiflorum A. C. Sanders 1982-6-6 2706 San Diego South Coast, Imperial Beach, mouth of the Tijuana River 2 Comment
  CAS-BOT-BC388796  Minuartia douglasii LeRoy Abrams 1903-5-14 3472 San Diego Tia Juana Comment
  POM156573  Minuartia douglasii L. R. Abrams 1903-5-14 3598 San Diego Tia Juana Comment
  CDA23867  Mirabilis laevis A. C. Browne 1953-8-24 San Diego Spooner Ranch, Tijuana Valley. 0 Comment
  CAS-BOT-BC434714  Mirabilis laevis var. crassifolia LeRoy Abrams 1903-5-15 3506 San Diego Near Tia Juana Comment
  POM156773  Mirabilis laevis var. crassifolia L. R. Abrams 1903-5-15 3506 San Diego Hills at Tia Juana. Comment
  RSA800004  Mirabilis laevis var. crassifolia LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5926 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD79864 Image available Mirabilis laevis var. crassifolia Helen V. Witham 1971-2-21 1201 San Diego Fairly common, Spooner Mesa, south of Tijuana River. 99 Comment
  SD83508  Mirabilis laevis var. crassifolia R. Mitchel Beauchamp, R. C. Pierce 1970-9-18 1336 San Diego Under Adolphia, canyon on south side of Otay River Valley. Comment
  UC150083  Mirabilis laevis var. crassifolia LeRoy Abrams 1903-5-15 3506 San Diego hillsides, Tia Juana Comment
  SD13258  Mirabilis laevis var. villosa Frank F. Gander 1936-1-28 505 San Diego on beach near Monument 258 Comment
  SD115694  Myoporum laetum Duffie Clemons 1984-4-15 833 San Diego In dry bed of small canyon north of Palm Ave. and Desty. 17 Comment
  SD219538  Myoporum laetum Jon P. Rebman, W. Schmidtmann and J. Rocks 2012-2-17 22542 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; north of the USA/Mexico border fence; lower north-facing slope of Bunker Hill near dirt road and canyon bottom 20 Comment
  UCR222395  Myoporum laetum Andrew Chen 2011-1-7 1533 San Diego South Coast, city of Imperial Beach, in bed of small canyon north of Palm Ave. and Desty St. intersection 17 Comment
  RSA795704  Myriophyllum W. R. Ferren, R. Leidy 1993-8-4 EPA- 133 San Diego Border Field State Park. Tijuana River flood plain. Along Dairy Mart Road. Comment
  UCSB70253  Myriophyllum sibiricum Ferren, Wayne; Leidy, R. 1993-8-4 San Diego Border Field State Park. Tijuana River flood plain. Along Dairy Mart Rd. Comment
  RSA696084  Nassella lepida Jon P. Rebman, K. Rich, B. Laurie, Oscar Solis, John K. 2000-5-26 6716 San Diego Moody Canyon area, just E of San Ysidro Jr. High School. 90 Comment
  RSA799704  Nassella pulchra LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5903 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD85567  Navarretia atractyloides R. Mitchel Beauchamp 1971-5-2 2329 San Diego South of Monument Rd. near Tijuana River and International Border. 22 Comment
  SD121052  Navarretia fossalis Michael Curto 1986-5-3 293 San Diego Otay Mesa. Remnant grassland (IPB 3/06) 46 Comment
  SD181175  Navarretia hamata subsp. leptantha Phillip Roullard 2005-5-17 44 San Diego South of the city of Imperial Beach, SW wall of Smuggler Gulch, on road just N of US/Mexico border fence, 0.4 mi SW of intersection of Hollister Rd and Monument Rd. 92 Comment
  CLARK-A1045-1311  Nemacaulis denudata George K. Helmkamp 1979-6-29 San Diego Imperial Beach .25 mile north of Mexico, sea beach sand Comment
  SEINET3858425 Image available Nemacaulis denudata Susan G. Stokes 1933-6-18 55 San Diego Beach sand near Point of Rocks, S of San Diego Comment
  CAS-BOT-BC109092  Nemacaulis denudata var. denudata S. G. Stokes 1900-8-3 s.n. San Diego Near Boundary Line. Comment
  CAS-BOT-BC109093  Nemacaulis denudata var. denudata Susan G. Stokes 1933-6-18 55 San Diego Near Point of Rocks, South of San Diego. Comment
  CAS-BOT-BC109094  Nemacaulis denudata var. denudata Susan G. Stokes 1933-6-18 55 San Diego Near Point of Rocks, South of San Diego. Comment
  CAS-BOT-BC109102  Nemacaulis denudata var. denudata Carl B. Wolf 1941-6-28 10915 San Diego Extreme southwest corner of U.S.A. about 500 feet north of initial boundary monument. 3 Comment
  LA95713  Nemacaulis denudata var. denudata Susan G. Stokes; 1933-6-18 55 San Diego Near Point of Rocks, S of San Diego Comment
  POM209235  Nemacaulis denudata var. denudata S. G. Stokes 1933-6-18 55 San Diego Near Point of Rocks, south of San Diego Comment
  RSA25605  Nemacaulis denudata var. denudata Carl B. Wolf 1941-6-28 10915 San Diego Extreme SW corner of the US, about 500 ft N of initial boundary monument 3 Comment
  SD15078  Nemacaulis denudata var. denudata Frank F. Gander 1936-4-28 1668 San Diego U.S. Boundary Monument 258 Comment
  SD22276  Nemacaulis denudata var. denudata Katherine Brandegee Jun 1899 San Diego Initial Monument Comment
  SD65913  Nemacaulis denudata var. denudata Susan G. Stokes 1933-6-18 55 San Diego Beach sands near Point of Rocks, south of San Diego. Comment
  SDSU9638  Nemacaulis denudata var. denudata unknown 1931-7-1 San Diego Tia Juana River Estuary. Comment
  UC534928  Nemacaulis denudata var. denudata Susan G. Stokes 1933-6-18 55 San Diego beach dunes near Point of Rocks (s of San Diego) Comment
  UC77723  Nemacaulis denudata var. denudata T. S. Brandegee San Diego Initial Monument Comment
  CAS-BOT-BC109115  Nemacaulis denudata var. gracilis Le Roy Abrams 1903-5-15 3509 San Diego Tia Juana River. Tia Juana. Comment
  POM2165  Nemacaulis denudata var. gracilis L. R. Abrams 1903-5-15 3884 San Diego Tia Juana river. Tia Juana. [San Ysidro?] Comment
  POM282835  Nemacaulis denudata var. gracilis L. R. Abrams 1903-5-15 3509 San Diego Tia Juana river. Tia Juana. [San Ysidro?] Comment
  SEINET3132412  Nemacaulis denudata var. gracilis L. Abrams 1903-5-15 3509 San Diego Tia Juana River, Tia Juana Comment
  UC153576  Nemacaulis denudata var. gracilis LeRoy Abrams 1903-5-15 3509 San Diego Tia Juana Tia Juana River Comment
  SD15061  Nemophila menziesii var. integrifolia Frank F. Gander 1936-4-28 1651 San Diego Near Monument School Comment
  SD201763  Nemophila menziesii var. integrifolia Phillip Roullard 2008-3-14 191 San Diego Border Field State Park, bottom of east facing slope, south towards the border fence, about 1.3 mi east of Pacific Ocean and .15 miles northeast of Border Monument #257 27 Comment
  SD219518  Nemophila menziesii var. integrifolia Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22513 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; east-facing lower slope of Bunker Hill 85 Comment
  SD227322  Nemophila menziesii var. integrifolia Phillip Roullard 2008-4-11 212 San Diego Border Field State Park, at the eastern base of Bunker Hill, south of city of Imperial Beach. South Mesa, flat area just north of US/Mexico Border fence, 1 mi E of Pacific Ocean and about .1 mi NW of Border Monument 257 70 Comment
  CAS-BOT-BC231693  Nicotiana glauca S. G. Stokes 1895-6-1 s.n. San Diego Tia Juana Comment
  SD167412  Nicotiana glauca Phillip Roullard 2004-11-11 3 San Diego Border Field State Park, from park entrance gate, continue west to where the road turns left. Go right instead up dirt road/horse trail approximately 1/8 mile, plant is on right 3 Comment
  SD262925  Nuttallanthus texanus Susan T Welker 1998-2-12 San Diego Otay; Tijuana River Valley; Spooner's Mesa; on the south side on bluffs and mesa overlooking Goat Canyon. 74 Comment
  CAS-BOT-BC171533  Oenothera californica LeRoy Abrams 1903-5-15 3510 San Diego Tijuana River, Tijuana Comment
  CAS-BOT-BC171541  Oenothera californica Alice Eastwood 1913-4-24 2921 San Diego Tijuana Comment
  POM156588  Oenothera californica subsp. californica L. R. Abrams 1903-5-15 3510 San Diego Tia Juana river. Tia Juana. [San Ysidro?] Comment
  UC153879  Oenothera californica subsp. californica LeRoy Abrams 1903-5-15 3510 San Diego Tia Juana Tia Juana River Comment
  UC50367  Oenothera californica subsp. californica H. M. Hall April 1893 3968 San Diego Tia Juana Wash Comment
  SD114117  Oenothera elata subsp. hirsutissima Darley F. Howe 1936-7-28 272 San Diego Lower Tia Juana River. Comment
  SD206117  Oenothera speciosa Phillip Roullard 2008-4-18 213 San Diego Border Field State Park, about.6 miles east of Pacific Ocean and .7 miles north of US/Mexico border 3 Comment
  CAS-BOT-BC427487  Oligomeris linifolia LeRoy Abrams 1903-5-14 3493 San Diego Hills at Tia Juana Comment
  POM156438  Oligomeris linifolia L. R. Abrams 1903-5-14 3493 San Diego Tia Juana Comment
  RSA696003  Oncosiphon piluliferum J. P. Rebman, K. Rich, B. Laurie, Oscar Solis 2000-5-26 6719 San Diego Moody Canyon area, just E of San Ysidro Jr. High School. 90 Comment
  SD152402 Image available Oncosiphon piluliferum Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6719 San Diego Moody Canyon area, just east of San Ysidro Jr. High School 89 Comment
  UC1787373  Oncosiphon piluliferum Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6719 San Diego Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
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Feb 1 2018
  UCR147150  Oncosiphon piluliferum Jon P. Rebman, Et al. 2000-5-26 6719 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  SD13294 Image available Opuntia X occidentalis Frank F. Gander 1936-1-28 484 San Diego Near Border Monument. Comment
  SDSU1311  Opuntia X occidentalis R. M. Beauchamp, R. C. Pierce 1970-12-5 San Diego Near Dairy Mart. Road. Comment
  SD237830  Opuntia leucotricha Jerry Green 2011-2-9 161 San Diego Otay Valley; 0.11 mile NW of intersection Twining Avenue and Byrd Street; E of Bayer Way and W of Highway 805; edge of canyon;Finney Overlook 74 Comment
  SEINET8464309 Image available Opuntia leucotricha Jerry Green 2011-2-9 161 San Diego Otay Valley; 0.11 mile Nw of intersection Twining Avenue and Byrd Street; E of Bayer Way and W or Highway 805; edge of canyon; Finney Overlook. 74 Comment
  SD113444  Opuntia littoralis Darley F. Howe 1952-5-17 2219 San Diego Near the Tia Juana Slough. Comment
  SD13293  Opuntia littoralis Frank F. Gander 1936-1-28 485 San Diego Near Border Monument 258, shore of Pacific. Comment
  SD13298  Opuntia littoralis Frank F. Gander 1936-1-28 511 San Diego On beach near Border Monument 258, shore of Pacific. Comment
  SD226048  Opuntia oricola Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22522 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  POM311448A  Opuntia parryi var. serpentina Lyman Benson 1963-7-10 16356 San Diego San Ysidro, 1 mile north of the Mexican Boundary. 30 Comment
  POM311448B  Opuntia parryi var. serpentina Lyman Benson 1963-7-10 16356 San Diego San Ysidro, 1 mile north of the Mexican Boundary. 30 Comment
  RSA497616  Opuntia prolifera A. C. Sanders, B. Pitzer, Steve Morgan 1987-5-14 7100 San Diego East end of San Ysidro at foot of Otay Mesa, dry slopes just E of beyer Street School. Comment
  LA102072  Ornithostaphylos oppositifolia Reid Moran; 1973-4-2 20351 San Diego near Boundary Mounument 256, 3 mi W of San Ysidro. First known U.S. Station 38 Comment
  LA103935  Ornithostaphylos oppositifolia Reid Moran; 1973-4-2 20351 San Diego near Boundary Mounument 256, 3 mi W of San Ysidro. First known U.S. Station 38 Comment
  NY380481  Ornithostaphylos oppositifolia R. V. Moran 1973-4-2 20351 San Diego Near Boundary Monument 256, 3 miles west of San Ysidro Comment
  RSA231192  Ornithostaphylos oppositifolia Reid V. Moran 1970-2-7 16722 San Diego North end of Tijuana Hills, 3 miles west of San Ysidro 100 Comment
  RSA252168  Ornithostaphylos oppositifolia Gary D. Wallace 1974-1-11 1384 San Diego North end on the Tijuana Hills, W of San Ysidro, off Monument Road along dirt road 0.5 miles W of jct. of dairy rd. 30 Comment
  RSA261901  Ornithostaphylos oppositifolia Reid V. Moran 1973-4-2 20351 San Diego Near Boundary Monument 256, 3 miles west of San Ysidro (first known US station). 125 Comment
  SBBG50362  Ornithostaphylos oppositifolia R. Moran 1973-4-2 20351 San Diego near Boundary Monument 256, 3 mi W of San Ysidro 125 Comment
  SD102746  Ornithostaphylos oppositifolia Walter Knight, Irja Knight 1979-3-5 3352 San Diego Tijuana Hills, ca. 150 yards from border and I(c) mile east of large 8 foot marker #256. Comment
  SD113726  Ornithostaphylos oppositifolia Darley F. Howe 1977-4-30 4936 San Diego Tijuana Hills, 3.0 miles west of San Ysidro. Comment
  SD128497 Image available Ornithostaphylos oppositifolia Reid Moran 1973-4-2 20351 San Diego Near Boundary Monument 256, 3 miles west of San Ysidro. First known U.S. station. 124 Comment
  SD170814  Ornithostaphylos oppositifolia Phillip Roullard 2005-5-20 52 San Diego South of the city of Imperial Beach, E of Smuggler Gulch, on road just N of US/Mexico border fence, 0.4 mi SE of intersection of Hollister Rd and Monument Rd. 92 Comment
  SD79413  Ornithostaphylos oppositifolia Reid Moran 1970-2-7 16722 San Diego North end of Tijuana Hills, 3 miles west of San Ysidro. 99 Comment
  SD84679  Ornithostaphylos oppositifolia Reid Moran 1973-4-2 20351 San Diego Near Boundary Monument 256, 3 miles west of San Ysidro. 124 Comment
  SEINET880415  Ornithostaphylos oppositifolia Reid Moran 1970-1 16722 San Diego Local in chaparral, north end of Tijuana Hills, 3 miles west of San Ysidro. 100 Comment
  SEINET880417 Image available Ornithostaphylos oppositifolia Reid Moran 1973-1 20351 San Diego Near Boundary Monument 256, 3 miles west of San Ysidro. First known U.S. station. 125 Comment
  UC1384363  Ornithostaphylos oppositifolia Reid Moran 1970-2-7 16722 San Diego 3 mi w San Ysidro; north end of Tijuana Hills 100 Comment
  UC1424956  Ornithostaphylos oppositifolia Gary D. Wallace 1974-1-11 1384 San Diego off Monument road 0.5 mi w jct. of Dairy rd. (w of San Ysidro); N end <of> the Tijuana Hills 30 Comment
  UCD117679  Ornithostaphylos oppositifolia Reid Moran 1973-4-2 20351 San Diego Near Boundary Monument , 3 miles west of San Ysidro. 125 Comment
  UCD117684  Ornithostaphylos oppositifolia Reid Moran 1973-4-2 20351 San Diego Near Boundary Monument , 3 miles west of San Ysidro. 125 Comment
  UCR116390  Ornithostaphylos oppositifolia Robert Noll 2000-7-5 s.n. San Diego South Coastal Plains region, Border Field State Park, along border fence 91 Comment
  UCR44768  Ornithostaphylos oppositifolia Reid Moran 1973-4-2 20351 San Diego South Coast, Near Boundary Monument 256, 3 miles west of San Ysidro 125 Comment
  CAS-BOT-BC355808  Osmadenia tenella C. B. Wolf 1931-5-26 2089 San Diego 1 mile S.W. of Otay, on the road to Tijuana 60 Comment
  UC729606  Osmadenia tenella C. B. Wolf 1931-5-26 2089 San Diego 1 mi sw of Otay; Road to Tijuana 60 Comment
  SD195294  Oxalis pes-caprae Phillip Roullard 2006-5-3 103 San Diego Imperial Beach, Tijuana Slough National Wildlife Refuge, E of Tower Road, Rivermouth Trail, N of Tijuana River, along W end of Imperial Beach Naval Auxillary Landing Field, 2 Comment
  SD79417  Oxalis pes-caprae Reid Moran 1970-2-7 16727 San Diego Occasional just behind beach at Mexican Boundary Monument. 99 Comment
  RSA0106583  Papaver heterophyllum LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5901 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  CAS-BOT-BC272333  Pappostipa speciosa LeRoy Abrams 1903-5-14 3470 San Diego Tia Juana Comment
  SD52610  Parapholis incurva W. E. Stewart 1962-5-4 San Diego Salt flat, I(c) mile north of the Mexican border, I(c) mile from shore. Comment
  SDSU13797  Parapholis incurva Michael G. Simpson, with Floristic Biodiversity class 1998-5-1 1 V98A San Diego Tijuna Estuary, Imperial Beach, near corner of Coronado and 3rd St 1 Comment
  SEINET8753403 Image available Parapholis incurva Edith A. Purer 1938-1 7468 San Diego Imperial Beach Comment
  SD219638  Parietaria hespera var. californica Jon P. Rebman, W. Schmidtmann and J. Rocks 2012-2-17 22539 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; north of the USA/Mexico border fence; lower north-facing slope of Bunker Hill near dirt road and canyon bottom 20 Comment
  SD249063  Parietaria hespera var. californica Phillip Roullard 2010-4-23 270 San Diego Border Field State Park; 1.65 mile WSW of intersection Hollister Road and Monument Road; 550 yards N of the border EPA restoration site between the sediment basins on the East and Monument Rd. 4 Comment
  RSA696004  Parietaria hespera var. hespera Jon P. Rebman, K. Rich, B. Laurie, Oscar Solis 2000-5-26 6720 San Diego Moody Canyon area, just E of San Ysidro Jr. High School. 90 Comment
  SD114490  Parietaria hespera var. hespera Darley F. Howe 1937-5-2 516 San Diego Hillside on south side of Tia Juana Valley, about one mile from the ocean. Comment
  SD154501  Parietaria hespera var. hespera Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6720 San Diego Moody Canyon area, just east of San Ysidro Jr. High School. (IPB 12/06) 89 Comment
  SD219639  Parietaria hespera var. hespera Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22487 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  SD249064  Parietaria hespera var. hespera Phillip Roullard, Jon Rebman 2009-4-18 239 San Diego Border Field State Park; Imperial Beach; W side of Bunker Hill near border; 1.34 miles SW of intersection Hollister Road and Monument Road 82 Comment
  UCR147149  Parietaria hespera var. hespera Jon P. Rebman, Et al. 2000-5-26 6720 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  CDA10275  Parthenocissus vitacea P. Roullard 2007-4-19 146 San Diego Imperial Beach, Border Field State Park,on beach, .5 miles west of Monument Road, .25 north of U. S. and Mexico border. N 32.5373 W 117.1115 Comment
  RSA733212  Parthenocissus vitacea Phillip Roullard 2007-4-19 146 San Diego Imperial Beach, Border Field State Park, on beach, 1/2 mi W of Monument Road, 1/4 N of U.S. and Mexico Border. 22 Comment
  SD194125  Parthenocissus vitacea Phillip Roullard 2007-4-19 146 San Diego Imperial Beach, Border Field State Park, on beach, I(c) mi W of Monument Road, Ao N of U.S. and Mexico border 21 Comment
  SD219395  Pectocarya linearis subsp. ferocula Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22492 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; north-facing slope near top of Bunker Hill 105 Comment
  SD170712  Pelargonium X hortorum Phillip Roullard 2005-6-24 77 San Diego Smuggler's Canyon (NE section), S of city of Imperial Beach, on Monument Rd just E of intersection with Hollister St. 11 Comment
  SD220883 Image available Pellaea andromedifolia var. pubescens Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22506 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; north-facing slope near top of Bunker Hill 105 Comment
  SD15054  Pentachaeta aurea Frank F. Gander 1936-4-28 1644 San Diego Otay Comment
  SD203043  Pentagramma glanduloviscida Phillip Roullard 2008-3-14 197 San Diego Border Field State Park, at the eastern base of Bunker Hill, south of city of Imperial Beach. South Mesa, flat area just north of US/Mexico Border fence, 1 mi E of Pacific Ocean and about .1 mi NW of Border Monument 257 73 Comment
  SD221500  Pentagramma viscosa Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22503 A San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; north-facing slope near top of Bunker Hill 105 Comment
  SD221501 Image available Pentagramma viscosa Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22503 B San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; north-facing slope near top of Bunker Hill 105 Comment
  SD235755  Pentagramma viscosa Phillip Roullard, Jon Rebman 2009-4-10 257 San Diego Border Field State Park; Imperial Beach; W side of Bunker Hill near border; 1.34 miles SW of intersection Hollister Road and Monument Road 82 Comment
  RSA799709  Peritoma arborea LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5917 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD170850  Peritoma arborea Phillip Roullard 2004-12-17 13 San Diego Border Field Bluffs, 0.6 mi SW of intersection of Monument Rd and 19th St, 0.4 mi N of US/Mexico border fence, NE of Goat Canyon. 56 Comment
  SDSU60  Peritoma arborea Harold B. Grant 1931-7-9 San Diego Hillside at international Boundary, Southwestern corner of County. Comment
  SD115697  Peritoma arborea var. arborea Duffie Clemons 1984-5-8 836 San Diego North of Palm Ave. and Desty. 17 Comment
  SD13214  Peritoma arborea var. arborea Frank F. Gander 1936-1-28 500 San Diego Shore of Pacific near Boundary Monument 258. Comment
  SD254996  Peritoma arborea var. arborea Susan T Welker 1998-2-19 San Diego South side of Tijuana River Valley, Spooners Mesa. North side of mesa along dirt road. 47 Comment
  SD79873  Peritoma arborea var. arborea Helen V. Witham 1971-2-21 1207 San Diego Spooner mesa, south of Tijuana River. 99 Comment
  SD212324  Persicaria lapathifolia Phillip Roullard 2008-3-14 183 San Diego Border Field State Park, at the eastern base of Bunker Hill, on the southeast side of the trail, about 1.2 miles east of Pacific Ocean and .18 mi north of US/Mexico border 79 Comment
  POM301542  Petunia parviflora J. C. Roos 1937-8-30 2559 San Diego Otay Comment
  UCR18309  Petunia parviflora A. C. Sanders 1979-10-13 00384 San Diego South Coast, Tijuana River Valley in the city of Imperial Beach, along the Tijuana River near where it crosses Hollister St. 9 Comment
  RSA696078  Phacelia cicutaria Jon P. Rebman, K. Rich, B. Laurie, Oscar Solis, John K. 2000-5-26 6705 San Diego Moody Canyon area, just E of San Ysidro Jr. High School. 90 Comment
  SD155168  Phacelia cicutaria var. hispida Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6705 San Diego Moody Canyon area, just east of San Ysidro Jr. High School 89 Comment
  SD170709  Phacelia cicutaria var. hispida Phillip Roullard 2005-4-15 23 San Diego Border Field State Park, S of city of Imperial Beach. South Mesa, flat area just northwest of US/Mexico border fence, 1 mi E of Pacific Ocean. 29 Comment
  SD262528  Phacelia cicutaria var. hispida Phillip Roullard, Chris Peregrin 2010-3-15 285 San Diego Border Field State Park; 1.4 mile WSW of intersection Hollister Road and Monument Road; 150 yards N of the border; West Side of Bunker Hill 70 Comment
  UCR147159  Phacelia cicutaria var. hispida Jon P. Rebman, K. Rich, O. Solis, John Klavzar, Robert K. Lauri 2000-5-26 6705 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  POM156432  Phacelia distans L. R. Abrams 1903-5-14 3478 San Diego Hills at Tia Juana, U.S. side of line. Comment
  RSA800003  Phacelia distans LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5925 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD152617  Phacelia distans Mark A. Elvin, Kim Marsden, Megan Enright, & Diona Roja 2002-3-11 1888 San Diego Imperial Beach, Lichte Mesa, slump in north central portiion of mesa, 100m north of US-Mexico border, 620 m east of Pacific Ocean 15 Comment
  SD170707  Phacelia distans Phillip Roullard 2005-4-15 27 San Diego Border Field State Park, S of city of Imperial Beach. South Mesa, flat area just northwest of US/Mexico Border fence, 1 mi E of Pacific Ocean. 14 Comment
  SD85287  Phacelia distans R. Mitchel Beauchamp 1971-5-2 2319 San Diego Grassy slope, bluffs south of Tijuana Valley 21 Comment
  CAS-BOT-BC155352  Phacelia ramosissima var. latifolia S. G. Stokes 1895-6-1 s.n. San Diego Tia Juana Comment
  RSA799673  Phacelia stellaris LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5908 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD118359  Phacelia stellaris Duffie Clemons, Erik Jonsson 1985-2-16 904 San Diego Border Field State Park 29 Comment
  SD146473  Phacelia stellaris Mark A. Elvin, Kim Marsden, Megan Enright, & Diona Roja 2002-3-11 1887 San Diego Imperial Beach, Lichte Mesa, slump in north central portiion of mesa, 100m north of US-Mexico border, 620 m east of Pacific Ocean 15 Comment
  SD198521  Phacelia stellaris Kim Marsden 2003-3-22 176 San Diego San Diego, Borderfield State Park, Lichty Mesa, 0.33 mi E of beach, 30 yds N of US/Mexico border 24 Comment
  SD201779  Phacelia stellaris Phillip Roullard 2008-2-29 187 San Diego Border Field State Park, S of city of Imperial Beach. On outer edge of Monument Mesa Picnic area near U.S./Mexico Border Fence, 0.2 mi E of Pacific Ocean. 15 Comment
  UCR202777  Phacelia stellaris Phillip Roullard 2008-2-29 187 San Diego South Coast, Border Field State Park, south of city of Imperial Beach. Outer edge of monument Mesa Picnic area near US/Mexico Border fence, 0.2 mi east of Pacific Ocean. Square W10 16 Comment
  UCR202979  Phacelia stellaris Kim Marsden 2003-3-22 176 San Diego South Coast, Borderfield State Park, Lichty Mesa, 0.33 mi east of beach, 30 yards north of US/MEX border. Square; W10 24 Comment
  CAS-BOT-BC250627  Phalaris minor Harley P. Chandler 1904-4-24 5118 San Diego Nestor Comment
  SD262871  Phalaris minor Susan T Welker 1993-5-2 San Diego Tijuana River Valley; SW corner of Sunset and International, Imperial Beach 7 Comment
  RSA628439  Pholistoma membranaceum George K. Helmkamp, E. A. Helmkamp 1999-2-26 4634 San Diego Chula Vista: Border State Park near the Pacific Ocean and Mexico. 6 Comment
  SD113473  Pholistoma membranaceum Darley F. Howe 1938-4-3 644 San Diego Mesa above Tia Juana Comment
  UCR130665  Pholistoma membranaceum George K. Helmkamp, E. A. Helmkamp 1999-2-26 4634 San Diego Chula Vista, Border State Park near the Pacific Ocean & Mexico. 6 Comment
  SD201783  Pholistoma racemosum Phillip Roullard 2008-2-29 169 San Diego Border Field State Park, south of city of Imperial Beach. South Mesa, flat area just north of US/Mexico Border fence, 1 mi E of Pacific Ocean 70 Comment
  SD262568  Pholistoma racemosum Phillip Roullard, Chris Peregrin 2010-3-15 290 San Diego Border Field State Park; 1.4 mile WSW of intersection Hollister Road and Monument Road; 150 yards N of the border; West Side of Bunker Hill 70 Comment
  CDA10283  Phytolacca icosandra P. Roullard 2006-10-6 137 San Diego Otay Mesa, Border Field State Park, 1.5 miles west of Hollister Street, .5 miles north of U. S. Mexican border. N 32.5427 W 117.1087 Comment
  SD192648  Phytolacca icosandra Theresa Acerro 2005-8-20 14 San Diego Tia Juana River Valley, Dairy Mart Ponds, San Ysidro, SW Dairy Mart Road exit of I-5, just S of trail head on Servando Ave. 9 Comment
  SD192649  Phytolacca icosandra Phillip Roullard 2006-10-6 137 San Diego Otay Mesa, Border Field State Park, 1I(c) mi W of Hollister Street, I(c) mi N of U.S. Mexico border 4 Comment
  SD222224  Phytolacca icosandra Mark A. Elvin, Tricia Wotipka 2004-11-4 3821 San Diego Southern Coastal: San Ysidro: Tijuana River Valley, N of Tijuana R., near intersection of Saturn and Leon Rds. 7 Comment
  UCR175605  Phytolacca icosandra Mark A. Elvin, Tricia Wotipka 2004-11-4 3821 San Diego Southern Coastal, San Ysidro: Tijuana River Valley, N of Tijuana River near the intersection of Saturn and Leon Rds 8 Comment
  SD219400  Plagiobothrys collinus var. californicus Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22472 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  SD235948  Plagiobothrys collinus var. californicus Phillip Roullard, Chris Peregrin 2010-3-15 292 San Diego Border Field State Park; 1.4 mile WSW of intersection Hollister Road and Monument Road; 150 yards N of the border; West Side of Bunker Hill 70 Comment
  SD219402  Plagiobothrys collinus var. gracilis Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22486 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  SD113144 Image available Planodes virginica Darley F. Howe 1939-3-19 768 San Diego Dried pool above Tijuana, on U.S. side. Comment
  SD219557  Plantago elongata Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22500 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; north-facing slope near top of Bunker Hill 105 Comment
  RSA800002  Plantago erecta LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5923 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD113747  Plantago erecta Darley F. Howe 1935-3-17 123 San Diego Otay Comment
  SD203556  Plantago erecta Phillip Roullard 2008-2-29 173 San Diego Border Field State Park, on the flat part just to the west of the slopes, about 1 mile east of Pacific Ocean and .25 mi north of US/Mexico border. 27 Comment
  POM301485  Plantago virginica J. C. Roos 1937-6-13 1709 San Diego San Isidro Comment
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May 24 2009
  UCR26184  Plantago virginica John C. Roos 1937-6-13 1709 San Diego South Coast, San Ysidro 46 Comment
  SD113849  Platystemon californicus Darley F. Howe 1938-4-3 645 San Diego Hillside above Tia Juana, U.S. side Comment
  SD15063  Platystemon californicus Frank F. Gander 1936-4-28 1653 San Diego Near Monument School Comment
  SD201826  Platystemon californicus Phillip Roullard 2008-3-14 199 San Diego Border Field State Park, at the eastern base of Bunker Hill, south of city of Imperial Beach. South Mesa, flat area just north of US/Mexico Border fence, 1 mi E of Pacific Ocean and about .1 mi NW of Border Monument 257 70 Comment
  SD85566  Platystemon californicus R. Mitchel Beauchamp 1971-5-2 2325 San Diego Grassy slope south of Tijuana Valley. 22 Comment
  SEINET3124132 Image available Platystemon californicus G. C. Deane 1883-2-24 s.n. San Diego Seashore, 100 ft from Lower California Comment
  UCR16434  Platystemon californicus Robert M. Hasegawa 1976-4-17 s.n. San Diego Otay Mesa, 1.2 - 1.5 mi NE of Beyer Way along Otay Mesa Road 152 Comment
  SD190953  Pluchea odorata Phillip Roullard 2006-2-25 92 B San Diego Imperial Beach, Border Field State Park, on beach, I(c) mi W of Monument Road, Ao N of U.S. and Mexico border 3 Comment
  SD167772  Pluchea odorata var. odorata Phillip Roullard 2004-9-28 1 San Diego Tijuana Slough NWR, Rivermouth trail. From 5th and Iris St. in Imperial Beach, park at trail head and walk about 1/4 mile to the freshwater marsh, plant is on right side of trail by drain pipe 0 Comment
  CAS-BOT-BC328205  Pluchea sericea LeRoy Abrams 1903-5-15 3515 San Diego Tiajuana River, Tiajuana Comment
  CAS-BOT-BC328210  Pluchea sericea Harley P. Chandler 1904-4-24 5096 San Diego Oneonta 7 Comment
  CAS-BOT-BC328212  Pluchea sericea A. C. Herre 1902-8-8 s.n. San Diego Tiajuana River Comment
  CAS-BOT-BC328214  Pluchea sericea Edgar A. Mearns 1894-7-15 3933 San Diego Vicinity of Monument 258 P Mex. bound. line Comment
  LA103558  Pluchea sericea H. van der Werff; 1981-6-15 4325 San Diego near Border Field Park along the Tijuana River Comment
  POM156546  Pluchea sericea L. R. Abrams 1903-5-15 3515 San Diego Tia Juana river. Tia Juana. [San Ysidro?] Comment
  SD219352  Pluchea sericea Jon P. Rebman, W. Schmidtmann and J. Rocks 2012-2-17 22535 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; north of the USA/Mexico border fence; lower north-facing slope of Bunker Hill near dirt road and canyon bottom 20 Comment
  SD5503  Pluchea sericea Charles F. Harbison 1934-8-10 San Diego Tijuana River Valley, 2 miles from ocean Comment
  SDSU408  Pluchea sericea unknown 1931-7-1 1557 San Diego Tiajuana River Estuary. Comment
  UCR228692  Polygonum lapathifolium Phillip Roullard 2008-3-14 183 San Diego Border Field State Park, at the eastern base of Bunker Hill, sotheast side of the trail, 1.2 mi east of Pacific Ocean and 0.18 mi north of US/Mexico Border fence. Square W10 80 Comment
  SD15053  Polygonum ramosissimum Frank F. Gander 1936-4-28 1643 San Diego Otay Comment
  SD128774  Polypodium californicum Geoffrey A. Levin, Melanie Howe 1990-4-9 2055 San Diego Small canyon off Goat Canyon, west end of Spooner's Mesa Steep north-facing slope 74 Comment
  SD221484  Polypodium californicum Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22496 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; north-facing slope near top of Bunker Hill 105 Comment
  SD235739  Polypodium californicum Phillip Roullard, Jon Rebman 2009-4-18 253 San Diego Border Field State Park; Imperial Beach; W side of Bunker Hill near border; 1.34 miles SW of intersection Hollister Road and Monument Road 82 Comment
  UCR255183  Polypodium californicum Jon P. Rebman, Phillip Roullard, Warren Schmidtmann, Jim Rocks 2012-2-17 22496 San Diego Border Field State Park, west of San Ysidro border crossing, south of Monument Road, just north of the US/Mexico border fence, north-facing slope near top of Bunker Hill Square W10 105 Comment
  SD249882  Polypogon monspeliensis Phillip Roullard 2011-3-15 331 San Diego Border Field State Park; 1.65 mile WSW of intersection Hollister Road and Monument Road; 550 yards N of the border EPA restoration site between the sediment basins on the East and Monument Rd. 4 Comment
  SD252458  Polypogon viridis Phillip Roullard 2011-9-15 341 San Diego Border Field State Park; 1.65 mile WSW of intersection Hollister Road and Monument Road; 550 yards N of the border EPA restoration site between the sediment basins on the East and Monument Rd. 3 Comment
  SD83574  Populus fremontii subsp. fremontii R. Mitchel Beauchamp, R. C. Pierce 1970-12-5 1438 San Diego River bottom, Tijuana River Valley. 4 Comment
  SD219354  Porophyllum gracile Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22515 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; east-facing lower slope of Bunker Hill 85 Comment
  SD83575  Prosopis pubescens R. Mitchel Beauchamp, R. C. Pierce 1970-12-21 1477 San Diego San Ysidro, Tijuana River Valley 4 Comment
  SD83536  Pseudognaphalium beneolens R. Mitchel Beauchamp, R. C. Pierce 1970-12-5 1435 San Diego On slope above river bed, Tijuana River Valley 4 Comment
  CAS-BOT-BC356607  Pseudognaphalium biolettii LeRoy Abrams 1903-5-16 3516 San Diego Tia Juana river, Tia Juana Comment
  POM156547  Pseudognaphalium biolettii L. R. Abrams 1903-5-16 3516 San Diego Hills near Tia Juana Comment
  RSA43746  Pseudognaphalium biolettii Higgins, Charles F. Harbison 1949-3-1 s.n. San Diego Coones Ranch, Mexican border about 2 miles from ocean Comment
  SD219355  Pseudognaphalium biolettii Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22494 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; north-facing slope near top of Bunker Hill 105 Comment
  SD219357  Pseudognaphalium biolettii Jon P. Rebman, W. Schmidtmann and J. Rocks 2012-2-17 22531 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; north of the USA/Mexico border fence; lower north-facing slope of Bunker Hill near dirt road and canyon bottom 20 Comment
  SD13030  Pseudognaphalium microcephalum Frank F. Gander 1936-1-10 399 San Diego 1 mile west of Monument School. Comment
  SD13212  Pseudognaphalium microcephalum Frank F. Gander 1936-1-28 496 San Diego Shore of Pacific near Boundary Monument 258. Comment
  SD83624 Image available Pseudognaphalium microcephalum R. Mitchel Beauchamp 1971-2-21 1644 San Diego Among shrubs, Spooner's Mesa, near International Border. 124 Comment
  SD155294  Pseudognaphalium stramineum Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6704 San Diego Moody Canyon area, just east of San Ysidro Jr. High School 89 Comment
  SD171009  Pseudognaphalium stramineum Phillip Roullard 2005-4-15 28 San Diego Border Field State Park, S of city of Imperial Beach. South Mesa, flat area just northwest of US/Mexico Border fence, 1 mi E of Pacific Ocean. 14 Comment
  SEINET4039759 Image available Pseudognaphalium stramineum O. M. Clark 1941-1 10058 San Diego Imperial Beach. Comment
  CAS-BOT-BC361798  Psilocarphus brevissimus var. brevissimus Harley P. Chandler 1904-4-24 5106 San Diego Oneonta Comment
  RSA799706  Pterostegia drymarioides LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5906 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD200954  Pterostegia drymarioides Phillip Roullard 2008-3-14 201 San Diego Border Field State Park, at the base of Bunker Hill, the furtherest hill to the west, up the ravine closest to the border fence, about 1.3 mi east of Pacific Ocean, .1 mi of US/Mexico border and just south of Goat Canyon 27 Comment
  SD256124  Quercus X acutidens Tom Oberbauer 2010-7-16 93 San Diego Otay; Spooners Mesa; western end; 0.1 mile N of border Baja California; 0.5 mile SW of intersection Monument Road Saturn Blvd. 96 Comment
  SD256586  Quercus X acutidens Tom Oberbauer 2010-7-16 94 San Diego Otay; Spooners Mesa; western end; 0.1 mile N of border Baja California; 0.5 mile SW of intersection Monument Road Saturn Blvd. 96 Comment
  LA205339  Quercus wislizeni Carl Epling; Harlan Lewis July 1941 sn San Diego Otay Comment
  SD242517  Rafinesquia californica Phillip Roullard, Jon Rebman 2009-4-18 236 San Diego Border Field State Park; Imperial Beach; W side of Bunker Hill near border; 1.34 miles SW of intersection Hollister Road and Monument Road 82 Comment
  SD13266  Raphanus raphanistrum Frank F. Gander 1936-1-28 520 San Diego Tiajuana River near Monument School. Comment
  SD115698  Raphanus sativus Duffie Clemons 1984-5-8 837 San Diego Imperial Beach 20 Comment
  SD13219  Raphanus sativus Frank F. Gander 1936-1-28 520 San Diego Tiajuana River near Monument School. Comment
  SD171067  Raphanus sativus Phillip Roullard 2005-6-10 72 San Diego Tijuana Slough National Wildlife Refuge, Rivermouth trail. 0.6 mi SWS of trailhead at intersection of 5th St and Iris Ave, just W of SW section of Imperial Beach Naval Air Station. 3 Comment
  SD219420  Raphanus sativus Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22520 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  CAS-BOT-BC55856  Rhamnus crocea LeRoy Abrams 1903-5-15 3499 San Diego Dry hillsides at Tijuana Comment
  RSA628438  Rhus integrifolia George K. Helmkamp, E. Helmkamp 1999-2-26 4631 San Diego Chula Vista: Border State Park near the Pacific Ocean and Mexico. 6 Comment
  SD13239  Rhus integrifolia Frank F. Gander 1936-1-28 503 San Diego Boundary Monument 258, Comment
  UCR130664  Rhus integrifolia George K. Helmkamp, E. A. Helmkamp 1999-2-26 4631 San Diego Chula Vista, Border State Park near the Pacific Ocean & Mexico. 6 Comment
  SD156709  Rhus ovata Unknown 1939-3-1 San Diego Otay Comment
  RSA534194  Ribes viburnifolium G. A. Levin, Howe 1990-4-9 2053 Santa Barbara Small canyon off Goat Canyon, W end of Spooner's Mesa. Comment
  RSA678893  Ribes viburnifolium Mark A. Elvin, Dylan Hannon, Beverly Lepak, Ramona Ferreira 1996-4-4 144 San Diego Spooner's Mesa Comment
  SD128777  Ribes viburnifolium V. Scheidt 1989-3-14 San Diego Small cyn. off Goat Cyn., W end of Spooners Mesa 74 Comment
  SD128778 Image available Ribes viburnifolium Geoffrey A. Levin, Melanie Howe 1990-4-9 2053 San Diego Small canyon off Goat Canyon, west end of Spooners Mesa Steep north-facing slope 74 Comment
  UC1593829  Ribes viburnifolium Geoffrey A. Levin with Melanie Howe 1990-4-9 2053 San Diego w end Spooner's Mesa (small canyon off Goat Canyon) 75 Comment
  SD13269  Ricinus communis Frank F. Gander 1936-1-28 524 San Diego Tia Juana River near Monument School Comment
  SD170804  Ricinus communis Phillip Roullard 2005-5-20 53 San Diego South of city of Imperial Beach, W side of Hollister St, just N of Tijuana River concrete bridge. 4 Comment
  CAS-BOT-BC421798  Rumex conglomeratus S. G. Stokes 1895-6-1 s.n. San Diego Near Tia Juana Comment
  UCSB70252  Rumex conglomeratus Ferren, Wayne 1993-8-5 San Diego Border Field State Park. Tijuana River flood plain. Along Dairy Mart Rd. Comment
  CAS-BOT-BC433329  Rumex crispus C. B. Wolf 1931-5-26 2092 San Diego 1 mile S.W. of Otay, on the road to Tijuana. 60 Comment
  RSA1731  Rumex crispus Carl B. Wolf 1931-5-26 2092 San Diego 1 mile SW of Otay, on the road to Tijuana. 61 Comment
  SD192695  Rumex crispus Phillip Roullard 2006-5-3 105 San Diego Imperial Beach, Tijuana Slough National Wildlife Refuge, E of Tower Road, Rivermouth Trail, N of Tijuana River, along W end of Imperial Beach Naval Auxillary Landing Field, 2 Comment
  UC527509  Rumex crispus C. B. Wolf 1931-5-26 San Diego 1 mi sw Otay (on the road to Tijuana) 60 Comment
  CAS-BOT-BC433525  Rumex fueginus S. G. Stokes 1895-6-1 s.n. San Diego Tia Juana Comment
  CAS-BOT-BC433564  Rumex hymenosepalus Alice Eastwood 1913-4-24 2917 San Diego Tia Juana Comment
  CAS-BOT-BC433640  Rumex mexicanus S. G. Stokes June. s.n. San Diego Tia Juana. Comment
  SD83587  Rumex pulcher R. Mitchel Beauchamp, R. C. Pierce 1970-12-5 1442 San Diego Moist area, Tijuana River Valley. 4 Comment
  SD80830  Salicornia bigelovii Helen V. Witham 1970-10-12 1161 San Diego 2 miles south of Third and Palm, Imperial Beach. 2 Comment
  SD83562 Image available Salicornia bigelovii R. Mitchel Beauchamp, R. C. Pierce 1970-9-18 1324 San Diego Littoral zone of tidal marsh,Imperial Beach. Comment
  UCR26662  Salicornia bigelovii O. F. Clarke 1967-10-21 s.n. San Diego Mouth of Tijuana River 2 Comment
  UC116564  Salicornia europaea T. S. Brandegee Nov 1898 San Diego near Initial Monument Comment
  SDSU142  Salicornia pacifica J. E Fitch 1940-12-17 San Diego Tiajuana Est. Comment
  UCR26612  Salicornia pacifica O. F. Clarke 1967-10-21 s.n. San Diego Mouth of Tijuana River 2 Comment
  POM156434  Salix exigua L. R. Abrams 1903-5-14 3485 San Diego Tia Juana River, Tia Juana. Comment
  RSA43745  Salix exigua E. B. Higgins, C. F. Harbison 1949-3-1 s.n. San Diego Tijuana River, near Monument school. Comment
  SDSU9426  Salix exigua Richard Neil 1938-5-8 San Diego Tia Juana River Valley near Monument School. Comment
  SDSU9428  Salix exigua Richard Neil 1938-5-8 San Diego Tia Juana River Valley near Monument School. Comment
  SD13220  Salix exigua var. exigua Frank F. Gander 1936-1-28 526 San Diego Tia Juana River near Monument Comment
  SD83512  Salix exigua var. exigua R. Mitchel Beauchamp, R. C. Pierce 1970-12-21 1480 San Diego North of oxidation ponds, Tijuana River Valley. 4 Comment
  SD83576  Salix exigua var. exigua R. Mitchel Beauchamp, R. C. Pierce 1970-12-21 1479 San Diego Sandy flat north of river, Tijuana River Valley. 4 Comment
  SD262994  Salix exigua var. hindsiana Susan T Welker 1993-5-2 San Diego Tijuana River Valley. Southwest corner of International and Sunset, Imperial Beach. 7 Comment
  POM156433  Salix gooddingii L. R. Abrams 1903-5-14 3484 San Diego Tia Juana River, Tia Juana. Comment
  SD247220  Salix gooddingii Phillip Roullard, Jon Rebman 2009-4-18 244 San Diego Border Field State Park; Imperial Beach; W side of Bunker Hill near border; 1.34 miles SW of intersection Hollister Road and Monument Road 82 Comment
  SD83580  Salix gooddingii R. Mitchel Beauchamp, R. C. Pierce 1970-12-5 1436 San Diego River bottom, Tijuana River Valley. 4 Comment
  CAS-BOT-BC108237  Salix hindsiana Alice Eastwood 1913-4-24 2926 San Diego Tijuana [Tia Juana] Comment
  SDSU9431  Salix laevigata Richard Neil 1938-5-8 San Diego Tia Juana River Valley, near Monument School.n Comment
  SD13221  Salix lasiolepis Frank F. Gander 1936-1-28 527 San Diego Tiajuana River, near Monument School Comment
  SD13243  Salix lasiolepis Frank F. Gander 1936-1-28 525 San Diego Tiajuana River, near Monument School Comment
  SD219609  Salix lasiolepis Jon P. Rebman, W. Schmidtmann and J. Rocks 2012-2-17 22529 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; north of the USA/Mexico border fence; lower north-facing slope of Bunker Hill near dirt road and canyon bottom 20 Comment
  SD263005  Salix lasiolepis Susan T Welker 1992-5-2 San Diego Imperial Beach; southwest corner of Sunset and International, floodplain 10 Comment
  SDSU9435  Salix lasiolepis Richard Neil 1938-5-8 San Diego Tia Juana River Valley near Monument School. Comment
  CAS-BOT-BC126355  Salix sessilifolia S. G. Stokes 1895-6-1 s.n. San Diego Near Tia Juana Comment
  CAS-BOT-BC126358  Salix sessilifolia LeRoy Abrams 1903-5-14 3485 San Diego Tia Juana River, Tia Juana Comment
  CAS-BOT-BC126359  Salix sessilifolia Harley P. Chandler 1904-4-2 5116 San Diego Oneonta 7 Comment
  CAS-BOT-BC126362  Salix sessilifolia Marcus E. Jones 1882-4-6 3730 San Diego Near Tia Juana Comment
  CAS-BOT-BC126364  Salix sessilifolia A. C. Herre 1902-8-1 s.n. San Diego Tia Juana Rv. Comment
  CDA28683  Salsola australis M. Pitcairn 2007-9-22 s.n. San Diego Tijuana River Natural Estaurine Reserve. Mouth of Tijuana River circa 2 miles north of the Mexico Border. 0 Comment
  CDA3170  Salsola australis R. E. Riefner Jr. 2007-3-3 Jul- 95 San Diego Imperial Beach, Tijuana Estuary, vicinity of 3rd Street and Caspian Way. Comment
  CDA3172  Salsola australis R. E. Riefner Jr. 2007-3-3 Jul- 90 San Diego Imperial Beach, Tijuana Estuary, near old gravel pit ca. 1.5 miles south from corner of 5th Street and Grove Road. Comment
  SD184134  Salsola australis Phillip Roullard 2006-2-25 97 San Diego Imperial Beach, Border Field State Park, on beach, I(c) mi W of Monument Road, Ao N of U.S. and Mexico border 3 Comment
  SD221624  Salsola australis Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22514 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; east-facing lower slope of Bunker Hill 85 Comment
  SD83475  Salsola australis R. Mitchel Beauchamp, R. C. Pierce 1970-12-5 1398 San Diego Tijuana River Valley. 4 Comment
  SD191254  Salvia apiana Phillip Roullard 2006-6-6 130 San Diego Otay Mesa, Border Field State Park, Border Field Bluffs, Ao mi W of Hollister Street, 200 yds N of U.S. Mexico border on top of mesa 14 Comment
  SD219529  Salvia columbariae Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22516 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; east-facing lower slope of Bunker Hill 85 Comment
  SD170681  Salvia mellifera Phillip Roullard 2004-3-11 20 San Diego Border Field State Park, S of city of Imperial Beach. South Mesa flat area west of road as it heads south to the US/Mexico border fence. 29 Comment
  CAS-BOT-BC246095  Sambucus nigra subsp. caerulea A. C. Herre 1902-7-1 s.n. San Diego Tia Juana River near ocean Comment
  CAS-BOT-BC246096  Sambucus nigra subsp. caerulea Harley P. Chandler 1904-4-24 5117 San Diego Oneonta 7 Comment
  CAS-BOT-BC246098  Sambucus nigra subsp. caerulea Le Roy Abrams 1902-8-8 s.n. San Diego Tia Juana River near Initial Monument Comment
  SD170843  Sambucus nigra subsp. caerulea Phillip Roullard 2005-6-10 70 San Diego Tijuana Slough National Wildlife Refuge, Rivermouth trail. 0.6 mi SWS of trailhead at intersection of 5th St and Iris Ave, just W of SW section of Imperial Beach Naval Air Station. 3 Comment
  SD170844  Sambucus nigra subsp. caerulea Phillip Roullard 2005-5-6 40 San Diego Border Field State Park, S of city of Imperial Beach. On road (East/West) paralleling US/Mexico border fence in between South Mesa and Lichty Mesa. 4 Comment
  SD208760  Sambucus nigra subsp. caerulea Phillip Roullard 2008-3-14 185 San Diego Border Field State Park, at the eastern base of Bunker Hill, on the southeast side of the trail, about 1.2 miles east of Pacific Ocean and .18 mi north of US/Mexico border 24 Comment
  SD112994  Sanicula arguta Darley F. Howe 1935-3-17 135 San Diego Otay Comment
  SD203209  Sanicula arguta Phillip Roullard 2008-3-14 202 San Diego Border Field State Park, at the eastern base of Bunker Hill, south of city of Imperial Beach. South Mesa, flat area just north of US/Mexico Border fence, 1 mi E of Pacific Ocean and about .1 mi NW of Border Monument 257 73 Comment
  SD235787  Sanicula crassicaulis Phillip Roullard, Jon Rebman 2009-4-18 252 San Diego Border Field State Park; Imperial Beach; W side of Bunker Hill near border; 1.34 miles SW of intersection Hollister Road and Monument Road 82 Comment
  SD112482  Sarcocornia pacifica Darley F. Howe 1935-6-23 174 San Diego Tia Juana Valley near ocean. Comment
  SD181001  Sarcocornia pacifica Phillip Roullard 2005-4-15 30 San Diego Border Field State Park, S of city of Imperial Beach. N of US/Mexico border fence, 0.5 mi E of Pacific Ocean, entry road just after the road curves to the picnic mesa. 4 Comment
  SD39560  Sarcocornia pacifica Edith A. Purer 1938-12-29 7901 San Diego Marsh near Mexican Boundary. Comment
  SD79885  Sarcocornia pacifica Helen V. Witham 1970-10-12 1165 San Diego 2 miles south of Third and Palm, Imperial Beach. 2 Comment
  SD83563 Image available Sarcocornia pacifica R. Mitchel Beauchamp, R. C. Pierce 1970-9-18 1323 San Diego Littoral zone of tidal marsh, Imperial Beach. Comment
  SD171130  Schinus molle Phillip Roullard 2005-6-24 80 San Diego Smuggler's Canyon (NE section), S of city of Imperial Beach, on Monument Rd just E of intersection with Hollister St. 10 Comment
  RSA799705  Schismus barbatus LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5907 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD219233  Schismus barbatus Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22519 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  SD171268  Schoenoplectus californicus Phillip Roullard 2005-6-10 67 San Diego Tijuana Slough National Wildlife Refuge, Rivermouth trail. 0.2 mi SW of trailhead at intersection of 5th St and Iris Ave, along the NW boundary of the Imperial Beach Naval Air Station. 3 Comment
  SD192795  Scrophularia californica subsp. floribunda Phillip Roullard 2006-6-6 128 San Diego Otay Mesa, Border Field State Park, Border Field Bluffs, Ao mi W of Hollister Street, 200 yds N of U.S. Mexico border on top of mesa 29 Comment
  SD12936  Selaginella bigelovii Frank F. Gander 1935-12-5 313 San Diego San Ysidro Comment
  SD219137  Selaginella bigelovii Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22489 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  SD219138  Selaginella cinerascens Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22471 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  SD112501  Senecio aphanactis Darley F. Howe 1938-3-27 604 San Diego Mesa above Tia Juana, US side. Comment
  SD15068  Senecio californicus var. californicus Frank F. Gander 1936-4-28 1658 San Diego US Boundary Monument 258 Comment
  SD79865  Senecio californicus var. californicus Helen V. Witham 1971-2-21 1200 San Diego International Border, near beach 4 Comment
  CAS-BOT-BC323172  Senecio flaccidus var. douglasii LeRoy Abrams 1903-5-15 3511 San Diego Tia Juana river, Tia Juana Comment
  RSA156776  Senecio flaccidus var. douglasii L. R. Abrams 1903-5-15 3511 San Diego River bottom at Tia Juana, north of boundary. Comment
  SD83538  Senecio flaccidus var. douglasii R. Mitchel Beauchamp, R. C. Pierce 1970-12-5 1433 San Diego Tijuana River Valley 4 Comment
  SD203275  Senecio vulgaris Phillip Roullard 2008-3-14 195 San Diego Border Field State Park, at base of east facing slope, south towards the border fence, about 1.2 mi east of Pacific Ocean and .1 miles north of Border Monument #257 25 Comment
  SD222139  Setaria adhaerens Mark A. Elvin 2004-11-4 3820 San Diego Southern Coastal: San Ysidro: Tijuana River Valley, N of Tijuana R., near intersection of Saturn and Leon Rds. 7 Comment
  CDA2458  Setaria verticillata T. C. Fuller 1962-10-16 9764 San Diego Highway 101 alternate, 2 miles north of San Ysidro. 0 Comment
  SD170833  Silene gallica Phillip Roullard 2005-3-11 22 San Diego Border Field State Park, S of city of Imperial Beach. South Mesa, flat area just northwest of US/Mexico Border fence. 29 Comment
  SD203375  Silene gallica Phillip Roullard 2008-2-29 184 San Diego Border Field State Park, at the eastern base of Bunker Hill, south of city of Imperial Beach. South Mesa, flat area just north of US/Mexico Border fence, 1 mi E of Pacific Ocean and about .1 mi NW of Border Monument 257 85 Comment
  SD243634  Silene gallica Phillip Roullard, Chris Peregrin 2010-3-17 304 San Diego Border Field State Park; 1.4 mile WSW of intersection Hollister Road and Monument Road; 150 yards N of the border; West Side of Bunker Hill 70 Comment
  SD191049  Silene laciniata subsp. laciniata Phillip Roullard 2006-6-6 131 San Diego Imperial Beach, Border Field State Park, Lichty Mesa North slope, S of Monument Road, I(c) mi E of beach, just N of U.S. and Mexico border 7 Comment
  SD113069  Silybum marianum Darley F. Howe 1937-5-16 497 San Diego Lower Tijuana Valley Comment
  CAS-BOT-BC202972  Simmondsia chinensis Harley P. Chandler 1904-4-24 5104 San Diego S. San Diego 7 Comment
  CAS-BOT-BC202976  Simmondsia chinensis A. C. Herre 1902-8-8 s.n. San Diego Near Oneonta Comment
  CAS-BOT-BC202977  Simmondsia chinensis A. C. Herre 1902-8-1 s.n. San Diego Oneonta Comment
  CAS-BOT-BC202978  Simmondsia chinensis C. B. Wolf 1931-5-26 2093 San Diego 1 mile S.W. of Otay, on the road to Tia Juana 60 Comment
  CDA35342  Simmondsia chinensis T. C. Fuller 1962-10-16 9765 San Diego Otay Mesa Road, 0.6 mile north of San Ysidro. 0 Comment
  LA209628  Simmondsia chinensis C. B. Wolf; 1931-5-26 2093 San Diego 1 mi SW of Otay, on the road to Tijuana 60 Comment
  RSA1746  Simmondsia chinensis Carl B. Wolf 1931-5-26 2093 San Diego 1 mi. SW of Otay on the road to Tijuana. 61 Comment
  RSA76936  Simmondsia chinensis F. W. Peirson 1923-3-27 3399 San Diego About 1/4 mile back from Imperial Beach. Comment
  SD12937  Simmondsia chinensis Frank F. Gander 1935-12-5 313 3 San Diego San Ysidro Comment
  SD15056  Simmondsia chinensis Frank F. Gander 1936-4-28 1646 San Diego Otay Comment
  SD239933  Simmondsia chinensis C. B. Wolf 1931-5-26 2093 San Diego 1 mile S.W. of Otay, on the road to Tijuana. 199 Comment
  UC527510  Simmondsia chinensis C. B. Wolf 1931-5-26 2093 San Diego on the road to Tijuana 1 mi sw Otay 60 Comment
  SD15052  Sisymbrium irio Frank F. Gander 1936-4-28 1642 San Diego Otay Comment
  SD203349  Sisymbrium irio Phillip Roullard 2008-2-29 178 San Diego Border Field State Park, at the eastern base of Bunker Hill, south of city of Imperial Beach. South Mesa, flat area just north of US/Mexico Border fence, 1 mi E of Pacific Ocean and about .1 mi NW of Border Monument 257 86 Comment
  RSA1732  Sisyrinchium bellum Carl B. Wolf 1931-5-26 s.n. San Diego 1 mile SW of Otay, on the road to Tijuana. 61 Comment
  SD112454  Sisyrinchium bellum Darley F. Howe 1935-3-17 154 San Diego Otay. Comment
  SD15047  Sisyrinchium bellum Frank F. Gander 1936-4-28 1637 San Diego Otay. Comment
  UC527523  Sisyrinchium bellum C. B. Wolf 1931-5-26 San Diego 1 mi sw of Otay (on the road to Tijuana) 60 Comment
  POM156435  Solanum douglasii L. R. Abrams 1903-5-14 3488 San Diego Hills at Tia Juana, U.S. side of line. Comment
  RSA360118  Solanum douglasii H. van der Werff 1981-6-15 4326 San Diego Roadside near Border Feild Park along Tijuana river. Comment
  RSA696081  Solanum douglasii Jon P. Rebman, K. Rich, B. Laurie, Oscar Solis, John K. 2000-5-26 6714 San Diego Moody Canyon area, just E of San Ysidro Jr. High School. 90 Comment
  SD124537  Solanum douglasii Henk van der Werff 1981-6-15 4326 San Diego Roadside near Border Field Park, along the Tijuana River. Comment
  SD154502  Solanum douglasii Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6714 San Diego Moody Canyon area, just east of San Ysidro Jr. High School (IPB 11/06) 89 Comment
  SD174034  Solanum douglasii Phillip Roullard 2005-4-15 25 San Diego Border Field State Park, S of city of Imperial Beach. South Mesa, flat area just northwest of US/Mexico Border fence, 1 mi E of Pacific Ocean. 14 Comment
  SD209173  Solanum douglasii Phillip Roullard 2008-3-14 180 San Diego Border Field State Park, at the base of Bunker Hill, the furtherest hill to the west, up the ravine closest to the border fence, about 1.3 mi east of Pacific Ocean, .1 mi of US/Mexico border and just south of Goat Canyon 41 Comment
  SD241611  Solanum douglasii Phillip Roullard 2010-8-12 308 San Diego Border Field State Park; 1.65 mile WSW of intersection Hollister Road and Monument Road; 550 yards N of the border EPA restoration site between the sediment basins on the East and Monument Rd. 4 Comment
  SD83547  Solanum douglasii R. Mitchel Beauchamp 1971-2-21 1646 San Diego Border field, Imperial Beach. 4 Comment
  SD83613  Solanum douglasii R. Mitchel Beauchamp, R. C. Pierce 1970-12-5 1440 San Diego Tijuana River Valley Comment
  UCR147167  Solanum douglasii Jon P. Rebman, K. Rich, O. Solis, John Klavzar, Robert K. Lauri 2000-5-26 6714 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  NY821417  Solanum nigrum L. Abrams 1903-5-14 3488 San Diego Near Tiajuana Comment
  SD174028  Solanum umbelliferum Phillip Roullard 2005-3-11 17 San Diego Border Field State Park, S of city of Imperial Beach. South Mesa flat area east side of road as it heads south to the US/Mexico border fence. 29 Comment
  SD45801  Solanum umbelliferum Charles F. Harbison 1955-3-10 San Diego International Monument 258 Comment
  RSA799713  Solanum xanti LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5913 San Diego Lichty Mesa, Borderfield State Park. 20 Comment
  SD79861  Solanum xanti Helen V. Witham 1971-2-21 1205 San Diego Spooner Mesa, south of Tijuana River. 99 Comment
  SD170935  Sonchus oleraceus Phillip Roullard 2005-6-10 74 San Diego Tijuana Slough National Wildlife Refuge, Rivermouth trail. 0.6 mi SWS of trailhead at intersection of 5th St and Iris Ave, just W of SW section of Imperial Beach Naval Air Station. 3 Comment
  SD220030  Sorghum bicolor Mark A. Elvin, Tricia Wotipka 2004-11-4 3816 San Diego San Ysidro; Tijuana River Valley, north of Tijuana R., near intersection of Saturn and Leon Rds. 7 Comment
  SD39566  Spartina foliosa Edith A. Purer 1938-10-28 7888 San Diego Salt marsh, in water, Tia Juana River Slough, near Imperial Beach Comment
  SD83471 Image available Spartina foliosa R. Mitchel Beauchamp, R. C. Pierce 1970-9-18 1329 San Diego Common in littoral zone of tidal marsh, Imperial Beach Comment
  UCR26652  Spartina foliosa O. F. Clarke 1967-10-21 s.n. San Diego Mouth of Tijuana River 2 Comment
  SD53690  Spergularia bocconi Mrs. Byl La Bar 1962-5-3 San Diego Nestor. Comment
  SD247117  Spergularia macrotheca var. macrotheca Phillip Roullard 2009-1-30 219 San Diego Imperial Beach; Tijuana Slough National Wildlife Refuge, El Centro Street (McCoy trail), 0.60 mi S of El Centro Street and Caspian Way, 0.50 mi NW of intersection Tower Road and Boundary Road 0 Comment
  CAS-BOT-BC390880  Spergularia marina Lewis S. Rose 1935-7-12 35331 San Diego Imperial Beach 0 Comment
  SDSU12815  Spergularia marina Kristen Ward, Georgeann Keer 1998-2-21 2 San Diego Tijuana River National Estuarine Research Reserve; at east end of Tidal Linkage restoration site, underneath west side of footbridge on south side of channel, ca. 150m southeast of Visitor Center. 1 Comment
  CAS-BOT-BC391021  Spergularia villosa C. B. Wolf 1931-5-26 2088 San Diego 1 mile S.W. of Otay, on the road to Tijuana 60 Comment
  CLARK-A1528-2480  Spergularia villosa John C. Roos 1937-6-13 640 San Diego San Ysidro Comment
  POM212298  Spergularia villosa C. B. Wolf 1931-5-26 2088 San Diego 1 mile SW of Otay, on the road to Tijuana. 61 Comment
  SD13213  Sphaeralcea ambigua Frank F. Gander 1936-1-28 499 San Diego Shore of Pacific, near Boundary Monument 258 Comment
  CAS-BOT-BC236675  Sporobolus airoides LeRoy Abrams 1903-5-13 3467 San Diego Tia Juana Comment
  GH355947  Sporobolus airoides L. Abrams 1903-5-13 3467 Unknown Tia Juana Comment
  POM156426  Sporobolus airoides Le Roy Abrams 1903-5-13 3467 San Diego Tia Juana Comment
  SD193514  Sporobolus airoides Phillip Roullard 2006-10-28 135 San Diego Imperial Beach, Tijuana Slough National Wildlife Refuge, E of Tower Road, Rivermouth Trail, N of Tijuana River, along W end of Imperial Beach Naval Auxillary Landing Field, 2 Comment
  SD154556 Image available Stachys rigida var. quercetorum Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6722 San Diego Moody Canyon area, just east of San Ysidro Jr. High School 89 Comment
  UCR147147  Stachys rigida var. quercetorum Jon P. Rebman, Et al. 2000-5-26 6722 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  SD112639  Stebbinsoseris heterocarpa Darley F. Howe 1935-3-31 161 San Diego Otay Comment
  SD219433  Stellaria pallida Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22499 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; north-facing slope near top of Bunker Hill 105 Comment
  SD249505  Stellaria pallida Phillip Roullard, Chris Peregrin 2010-3-15 289 San Diego Border Field State Park; 1.4 mile WSW of intersection Hollister Road and Monument Road; 150 yards N of the border; West Side of Bunker Hill 70 Comment
  SD167753  Stephanomeria diegensis Phillip Roullard 2004-11-26 5 San Diego Hollister St. south to Monument Rd., go right on Monument approximately 1/4 mile on right, after crossing drainage from Smugglers Gulch, first pullout on the right 7 Comment
  SD170933  Stephanomeria diegensis Phillip Roullard 2005-6-3 62 San Diego Tijuana Slough National Wildlife Refuge, from the Tijuana estuary visitor center parking lot, south onto the McCoy trail about 0.25 miles, 60' west off the trail. 4 Comment
  SDSU544  Stephanomeria exigua subsp. deanei unknown, Field Study Zoology Class 1931-7-1 San Diego Tiajuana River Estuary. Comment
  UCR147152  Stipa Jon P. Rebman, Et al. 2000-5-26 6716 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  SD154642  Stipa diegoensis Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6716 San Diego Moody Canyon area, just east of San Ysidro Jr. High School. (IPB 3/07) 89 Comment
  SD219238  Stipa diegoensis Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22481 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  SD219239  Stipa lepida Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22480 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; west-facing slope of Bunker Hill 45 Comment
  SD190824  Stipa miliacea Theresa Acerro 2005-8-20 13 San Diego Tia Juana River Valley, Dairy Mart Ponds, San Ysidro, SW Dairy Mart Road exit of I-5, just S of trail head on Servando Ave. 9 Comment
  RSA799672  Stylocline gnaphaloides LeRoy Gross, Evan Meyer, Bart O'Brien 2013-3-13 5922 San Diego Lichty Mesa, Borderfield State Park. Near 20 Comment
  SD219383  Stylocline gnaphaloides Jon P. Rebman, P. Roullard, W. Schmidtmann, & J. Rocks 2012-2-17 22493 San Diego Border Field State Park: west of San Ysidro border crossing; south of Monument Road; just north of the USA/Mexico border fence; north-facing slope near top of Bunker Hill 105 Comment
  SD242529  Stylocline gnaphaloides Phillip Roullard, Jon Rebman 2009-4-18 233 San Diego Border Field State Park; Imperial Beach; W side of Bunker Hill near border; 1.34 miles SW of intersection Hollister Road and Monument Road 82 Comment
  RSA66301  Stylomecon heterophylla F. W. Peirson 1923-3-27 3389 San Diego Imperial Beach. Comment
  SD192647  Stylomecon heterophylla Phillip Roullard 2006-4-27 98 San Diego Imperial Beach, Border Field State Park, Lichty Mesa North slope, S of Monument Road, I(c) mi E of beach, just N of U.S. and Mexico border 6 Comment
  SD196573  Stylomecon heterophylla Kim Marsden, Cindy Burrascano 2003-3-15 172 San Diego San Diego, Borderfield State Park, Lichty Mesa, 0.33 mi E of beach, 30 yds N of US/Mexico border 24 Comment
  SD201827  Stylomecon heterophylla Phillip Roullard 2008-3-21 205 San Diego Border Field state park, east side of Bunker hill, (westernmost hill from the entrance), walk from the large eucalyptus grove at the base to the top of the trail, about 1.2 mi east of Pacific Ocean and .1 miles northwest of Border Monument #257 21 Comment
  UCR202998  Stylomecon heterophylla Kim Marsden, Cindy Burrascano 2003-3-15 172 San Diego South Coast, Borderfield State Park, Lichty Mesa, 0.33 mi east of beach, 30 yards north of US/MEX border. Square; W10 24 Comment
  SDSU5616  Suaeda californica J. E. Fitch 1940-12-17 2261 San Diego Tiajuana Estuary. Comment
  UCR123220  Suaeda californica O. F. Clarke 1973-10-30 s.n. San Diego Pacific Coast, Border Field State Park, 100 yards from tidal zone 0.5 Comment
  CAS-BOT-BC110392  Suaeda esteroa Harley P. Chandler 1903-10-3 4006 San Diego South San Diego. 0 Comment
  SD13261  Suaeda esteroa Frank F. Gander 1936-1-28 513 San Diego Near beach 1 mile north of Monument 258 Comment
  SD39571  Suaeda esteroa Edith A. Purer 1938-10-28 7889 San Diego Imperial Beach, salt marsh area Comment
  SD39572  Suaeda esteroa Edith A. Purer 1938-10-28 7889 San Diego Imperial beach, salt marsh Comment
  SD80832  Suaeda esteroa Helen V. Witham 1970-10-12 1159 San Diego Imperial Beach, 2 miles south of Third & Palm 2 Comment
  SD83472  Suaeda esteroa R. Mitchel Beauchamp, R. C. Pierce 1970-9-18 1327 San Diego Imperial Beach, littoral zone of tidal marsh Comment
  UCR26613  Suaeda esteroa O. F. Clarke 1967-10-21 s.n. San Diego Mouth of Tijuana River 2 Comment
  RSA68427  Suaeda moquinii F. F. Gander 1939-5-7 5546 San Diego Palm City Comment
  UC56211  Suaeda moquinii H. M. Hall Apr. 1903 3967 San Diego Tia Juana Wash Comment
  SD112492  Suaeda nigra Darley F. Howe 1950-6-25 1999 San Diego Slough south of Imperial Beach. Comment
  SD21123 Image available Suaeda nigra Frank F. Gander 1938-5-7 5546 San Diego Palm City. Comment
  SD112488  Suaeda taxifolia Darley F. Howe 1975-5-29 4888 San Diego Slough south of Imperial Beach. Comment
  SDSU17129  Suaeda taxifolia Michael G. Simpson, Tax. Calif. Pls. class 2006-4-18 2601 San Diego Tijuana Estuary, along path from 3rd St. and Imperial Blvd., ca. 200 feet toward Visitor's Center. 0 Comment
  UCSB57013  Suaeda taxifolia Sanders, A. 1986-2-2 San Diego Chula Vista; abandoned farm at the edge of San Diego Bay; ca. 1/4 mi. N of the end of "E" Street Comment
  SD112493  Suaeda torreyana Darley F. Howe 1935-6-2 249 San Diego Mouth Tia Juana River Comment
  SD13265  Suaeda torreyana Frank F. Gander 1936-1-28 518 San Diego Salt marsh, 1I(c) miles northeast of Monument 258, San Diego. Comment
  SD13267  Suaeda torreyana Frank F. Gander 1936-1-28 San Diego Tia Juana River, near Monument School Comment
  SD39573  Suaeda torreyana Edith A. Purer 1938-12-29 7900 San Diego Salt marsh, near Mexican boundary. Comment
  SD249457  Symphyotrichum subulatum var. elongatum Phillip Roullard 2010-11-12 330 San Diego Border Field State Park; Monument Mesa, W end; 250 yards E of Pacific Ocean and 250 yards N of the border; parking lot adjacent to Monument Mesa on the north side 3 Comment
  SEINET3145198  Syrmatium prostratum Unknown 1904-5-14 3486 San Diego Tia Juana River, Tia Juana Comment
  SEINET3132417  Syrmatium tomentosum Unknown 1903-5-15 3503 San Diego Tia Juana River, Tia Juana Comment
  SD174022  Tamarix ramosissima Phillip Roullard 2005-6-24 86 San Diego South of city of Imperial Beach, W side of Hollister St, just S of Tijuana River concrete bridge. Plant located on west side in picnic area. 3 Comment
  SD194111  Tamarix ramosissima Phillip Roullard 2007-1-13 138 San Diego Otay Mesa, Border Field State Park, along Monument Road, 1I(c) mi W of junction with Hollister Street, I(c) mi N of U.S. Mexico border 3 Comment
  SD85821  Tamarix ramosissima R. Mitchel Beauchamp, R. C. Pierce 1970-12-5 1431 San Diego Common in moist areas, Tijuana River Valley. 4 Comment
  RSA0039629  Tanacetum parthenium Phillip Roullard 2011-8-7 340 a San Diego Border Field State Park; 1.65 mile WSW of intersection Hollister Road and Monument Road; 550 yards N of the border EPA restoration site between the sediment basins on the East and Monument Rd. 5 Comment
  RSA0041556  Tanacetum parthenium Phillip Roullard 2011-8-7 340 b San Diego Border Field State Park; 1.65 mile WSW of intersection Hollister Road and Monument Road; 550 yards N of the border EPA restoration site between the sediment basins on the East and Monument Rd. 5 Comment
  SD253041  Tanacetum parthenium Phillip Roullard 2011-8-7 340 B San Diego Border Field State Park; 1.65 mile WSW of intersection Hollister Road and Monument Road; 550 yards N of the border EPA restoration site between the sediment basins on the East and Monument Rd. 4 Comment
  SD253042  Tanacetum parthenium Phillip Roullard 2011-8-7 340 A San Diego Border Field State Park; 1.65 mile WSW of intersection Hollister Road and Monument Road; 550 yards N of the border EPA restoration site between the sediment basins on the East and Monument Rd. 4 Comment
  SEINET8042999  Tanacetum parthenium Phillip Roullard 2011-1 340 b San Diego Border Field State Park; 1.65 mile WSW of intersection Hollister Road and Monument Road; 550 yards N of the border EPA restoration site between the sediment basins on the East and Monument Rd. 5 Comment
  UCR265298  Tanacetum parthenium Phillip Roullard 2011-8-7 340 A San Diego Border Field state Park; 1.65 mi west-southwest of intersection of Hollister Road and Monument Road, 550 yards north fo the border of the EPA restoration site between the sediment basins on the East and Monument Road. Square: W10 5 Comment
  CAS-BOT-BC499152  Tetragonia tetragonoides Mark A. Elvin; Dan Brown; Brian Collins 2001-5-8 1639 San Diego South Coast Region: San Diego: Sweetwater Marsh National Wildlife Refuge, along Otay River Channel near confluence with Nestor Creek 2 Comment
  POM265642  Tetragonia tetragonoides J. C. Roos 1937-6-13 2231 San Diego Imperial Beach. Comment
  UCR264089  Tetragonia tetragonoides Mark A. Elvin, Dan Brown, Brian Collins 2001-5-8 1639 San Diego South Coast, San Diego, Sweetwater Marsh National Wildlife Refuge, along Otay River channel near confluence with Nestor Creek 2 Comment
  SEINET10743513  Tiquilia hispidissima G. Arsene 1927-9-2 Arsene 14020 Unknown San Ysidroz 1700 Comment
  SD241506  Trifolium willdenovii Phillip Roullard, Jon Rebman 2009-4-18 242 San Diego Border Field State Park; Imperial Beach; W side of Bunker Hill near border; 1.34 miles SW of intersection Hollister Road and Monument Road 82 Comment
  SD22017  Triglochin concinna var. concinna Frank F. Gander 1938-9-25 6156 San Diego Near Boundary Monument No. 258. Comment
  SD85529 Image available Triglochin concinna var. concinna R. Mitchel Beauchamp 1971-5-1 2303 San Diego Moist area, Tijuana Slough. Comment
  CLARK-A1528-5022  Triglochin maritima John C. Roos 1937-6-13 1449 San Diego Imperial Beach Comment
  RSA69592  Triglochin maritima F. W. Peirson 1923-3-27 3391 San Diego Imperial Beach. Comment
  SD170462  Tropaeolum majus Phillip Roullard 2005-6-24 83 San Diego Smuggler's Canyon (NE section), S of city of Imperial Beach, on Monument Rd just E of intersection with Hollister St. 10 Comment
  CDA7925  Urtica urens F. P. Roullard 2007-4-19 147 San Diego Otay Mesa, Border Field State Park, Border Field Bluffs 1/4 mile north of U. S./Mexico border. N 32.5401 W 117.1069 Comment
  RSA733204  Urtica urens Phillip Roullard 2007-4-19 147 San Diego Otay Mesa, Border Feidl State Park, Border Field Bluffs, 1/4 mi W of Hollister Street, 1/4 mi N of U.S. Mexico border. 23 Comment
  SD154500  Urtica urens Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6718 San Diego Moody Canyon area, just east of San Ysidro Jr. High School. (IPB 12/06) 89 Comment
  SD194117  Urtica urens Phillip Roullard 2007-4-19 147 San Diego Otay Mesa, Border Field State Park, Border Field Bluffs, Ao mi W of Hollister Street, Ao mi N of U.S. Mexico border 22 Comment
  UCR147168  Urtica urens Jon P. Rebman, K. Rich, O. Solis, John Klavzar, Robert K. Lauri 2000-5-26 6718 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  SD113532  Vachellia farnesiana var. minuta Darley F. Howe 1935-5-5 209 San Diego South of Otay on highway Comment
  SD83075  Vachellia farnesiana var. minuta Reid Moran 1972-2-13 19077 San Diego Several at Beyer Way, Vista Ave. and Coronado Ave., 2 miles south of Otay (mak 4/08) 10 Comment
  CLARK-A1528-4405  Verbena menthifolia John C. Roos 1937-6-13 1440 San Diego San Ysidro Comment
  SD175693  Verbena menthifolia Phillip Roullard 2005-9-28 88 San Diego Tijuana Slough National Wildlife Refuge. S side of visitor center parking lot, take McCoy trail, which goes S from the trail junction, go S 1/8 mile, turn W and 300 3 Comment
  SD87681  Vicia ludoviciana F. W. Peirson 1923-3-27 3395 San Diego Imperial Beach, saline flat back of sand dunes Comment
  SD264554  Vicia ludoviciana subsp. ludoviciana Susan T. Welker 1998-4-9 1549 San Diego Tijuana River Valley Open Space, south of Imperial Beach, north of International Border. Adjacent to dirt road from Monument Rd to north side of Spooner's Mesa. Grid W 10. 81 Comment
  UC1787367  Viguiera laciniata Jon P. Rebman, K. Rich, B. Laurie, O. Solis, John K. 2000-5-26 6726 San Diego Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  UC34594  Viguiera laciniata Geo. B. Grant Apr 1902 1036 San Diego American side Tia Juana; Tia Juana American side Comment
  UC429866  Viguiera laciniata Ira L. Wiggins 1928-6-16 3233 San Diego near Nestor Comment
  UC676644  Viguiera laciniata Ira L. Wiggins 1928-6-16 3233 San Diego Nestor Comment
  UC832839  Viguiera laciniata Alice Eastwood 1913-4-21 2902 San Diego Tia Juana Comment
  UCR147144  Viguiera laciniata Jon P. Rebman, Et al. 2000-5-26 6726 San Diego Coastal Plains & Basins; South Coastal Plain region, Moody Canyon area, just east of San Ysidro Jr. High School 90 Comment
  SD114505  Viola pedunculata Darley F. Howe 1935-2-10 95 San Diego Otay Comment
  SD161898 Image available Vitis vinifera Phillip Roullard 2005-6-24 76 San Diego Smuggler's Canyon (NE section), S of city of Imperial Beach, on Monument Rd just E of intersection with Hollister St. 11 Comment
  SD196329  Xanthium spinosum Phillip Roullard 2007-8-4 158 San Diego San Diego, Borderfield State Park, I(c) mi S of westernmost end of Monument Road, just N of US / Mexico border, near beach 11 Comment
  SDSU19351  Xanthium spinosum Phillip Roullard 2007-8-4 158 San Diego San Diego, Borderfield State Park, 1/2 mi S of westernmost end of Monument Road, just N of US / Mexico border, near beach 12 Comment
  UCR203003  Xanthium spinosum Phillip Roullard 2007-8-4 158 San Diego South Coast, San Diego, Border Field State Park, 0.5 m south of westernmost end of Monument Road, just north of US/Mexico border, near beach. Square W10 12 Comment
  CDA9013  Xanthium strumarium T. C. Fuller 1962-10-16 9763 San Diego In wash of Tia Juana River, south of Highway 101 freeway at Dairy Mart Road, San Yisdro. 0 Comment
  SD113179  Xanthium strumarium D. F. Howe 1935-8-4 292 San Diego Lower Tia Juana (sic) Valley. Comment
  SD83535  Xanthium strumarium R. Mitchel Beauchamp, R. C. Pierce 1970-12-5 1412 San Diego Riverbed, Tijuana River Valley. Comment
  SD84672 Image available Xylococcus bicolor Reid Moran 1973-4-2 20350 San Diego Near Boundary Monument 256, 3 miles west of San Ysidro. 124 Comment
  SD235790  Yabea microcarpa Phillip Roullard, Jon Rebman 2009-4-18 255 San Diego Border Field State Park; Imperial Beach; W side of Bunker Hill near border; 1.34 miles SW of intersection Hollister Road and Monument Road 82 Comment
  SD192090  Yucca schidigera Phillip Roullard 2007-4-18 145 San Diego Imperial Beach, Tijuana Slough National Wildlife Refuge, E of Tower Road, Rivermouth Trail, N of Tijuana River, along W end of Imperial Beach Naval Auxillary Landing Field, 6 Comment
  SD170732  Zeltnera venusta Phillip Roullard 2005-5-6 41 San Diego Border Field State Park, S of city of Imperial Beach. South Mesa flat area just north of US/Mexico border fence, east side of the road. 14 Comment
  UC486447  Zigadenus fremontii F. G. Woodcock 1932-5-1 90 San Diego Otay Comment



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